System and method of distance indication

FIELD: transport.

SUBSTANCE: invention relates to automotive industry. Proposed system for transport facility suspension comprises first and second transceivers mounted on transport facility body and suspension element. First transceiver generates first electromagnetic wave to be received by second transceiver. On the bases of the first wave, second transceiver defines the distance to the first transceiver. Second transceiver generates second electromagnetic wave to be sent to first transceiver. Besides, is modulates said second electromagnetic wave to transmit data on said distance, and, for example on pressure and temperature.

EFFECT: accelerated data acquisition and transmission, higher reliability.

12 cl, 6 dwg

 

BACKGROUND of INVENTION

The present invention relates to techniques for distance measurement and, more specifically, to a system and method for indicating the distance between the interconnected structural elements using the modulation of the electromagnetic wave.

The proposed system and method are intended for use in a wide range of applications and environments. One example of a suitable application is the use of the inventive system and method in a pneumatic suspension element, in particular in an air suspension vehicle. System and method according to the invention will be discussed in detail below with reference to the known devices employing such interrelated elements of a pneumatic suspension. However, it should be understood that this system and method may find broader application and is not limited to these examples, which are merely variants of suitable applications. Currently using a variety of devices and methods to control the position of one structural element relative to another. For example, frequently used sensors mechanical connection, which include one or more connection elements between adjacent structural elements, such as suspension components transport is the main means, and the frame or body of the vehicle. The connection elements are typically electrical circuit with a variable resistor or other suitable elements, the resistance of which varies in response to movement of the link elements. Electronic control unit (ECU) or other suitable device then determines the relative position of one structural element to another on the basis of a corresponding change in voltage on the variable resistor or a corresponding change in current through the resistor. However, such devices have several disadvantages that are typically associated with their continued use. One problem associated with the use of mechanical linkages, in particular, in the suspension system of the vehicle, is that the mechanical connection elements are often subjected to physical impact, for example, shock dirt particles from the highway. This can lead to damage of items due or to their full damage. As a result, this device is no longer functioning properly or doesn't work at all.

Another problem associated with sensors mechanical connection, is that the electronic components of the sensor are usually exposed to severe environmental conditions (e.g. extreme temperatures, water,dirt, salt), which usually operate on a vehicle traveling on the highway. In the result of the impact of electronic components of the sensor can be exposed to corrosion and unable to function normally. Because of these or other problems, one or more sensors mechanical connection may not respond to conditions of use at any time. Normally, therefore, require regular inspection and replacement of such sensors.

Another disadvantage of sensors mechanical connection is that these sensors are installed separately from the other components of the suspension. The result is usually required additional time and effort to install these components in the Assembly process. In addition, typically requires additional efforts to eliminate backlash in the installation and operation of mechanical elements. Thus, such sensors require unreasonably substantial effort and space for their installation and operation.

As an alternative to mechanical sensors communication, offers proximity sensors, which use sound waves or pressure waves going through the liquid medium, usually at a supersonic frequency, for determining the position of one structural element relative to another. One example of this application is a supersonic sensor, use the St to determine the height of the suspension element, for example pneumatic suspension. When such use supersonic sensor is mounted on one end of the pneumatic suspension element and sends ultrasonic waves through the chamber of the pneumatic spring suspension to the opposite end of the element. Waves are reflected from the respective opposite end of the element, and the distance between them is defined in the usual way. One advantage of this device compared to a device for mechanical connection is that the supersonic sensor at least partially protected from the adverse effects of the road. However, the use of supersonic sensors are also associated with a number of disadvantages. One such shortcoming is that these sensors are relatively expensive and are associated with undesirable trend of increased production costs. In addition, the cost of replacing the sensor, which is damaged due to external impact, increases accordingly.

Another disadvantage is that the supersonic sensors require goals to reflect the supersonic waves back to the transducer in order to determine the distance between the target elements. If such a goal will not be provided, the ultrasonic waves will not be reflected back and thus, the correct determination of the distance cannot be ensured. Thus, for n the improper operation of the supersonic sensors must be provided to the target area. In particular, this can cause problems where structural components limit the ability to create the target area. This is also a problem for existing components equipment supersonic sensors, where existing components do not have a suitable landing area.

The INVENTION

Display system distances in accordance with one embodiment of the present invention includes a transmitter for transmitting a first electromagnetic wave. The system also has a transceiver, which is mounted at a certain distance from the transmitter. A transceiver operatively receives the first electromagnetic wave and transmitting the second electromagnetic wave. The transceiver also quickly modulating the second electromagnetic wave in the distance. The receiver is mounted separately from the transceiver and operatively receives the second modulated electromagnetic wave.

In the display system distances specified transceiver can modulate the specified second electromagnetic wave using one of amplitude modulation and frequency modulation.

Specified, the first electromagnetic wave can be transmitted using the first carrier having the first frequency and the specified second electromagnetic wave can be transmitted using the second carrier, have th second frequency.

The first frequency may be in the range from about 30 kHz to about 300 MHz and the second frequency in the range from about 300 kHz to about 6 GHz.

Display system distances in accordance with another alternative embodiment of the present invention is appropriate for the suspension system of the vehicle containing the corresponding pneumatic suspension unit with the first and second end elements and the elastic wall, located between them, includes a transmitter installed near the first end element to transmit the first electromagnetic wave, and a transceiver mounted near the second end element at a certain distance from the transmitter. A transceiver operatively receives the first electromagnetic wave and transmitting the second electromagnetic wave. The transceiver also quickly modulating the second electromagnetic wave in the distance. The receiver is mounted separately from the transceiver and operatively receives the second modulated electromagnetic wave.

The pneumatic suspension unit in accordance with one embodiment of the present invention includes a first end element, a second end element, located at a distance from the first end element, and an elastic wall, which is installed between the first and second end ale is nami, and at least partially forms an air chamber between them. The first transceiver is mounted on the first end member and includes a first antenna for transmitting a first electromagnetic wave and a second antenna for receiving the second electromagnetic wave. The second transceiver is mounted on the second end element at a certain distance from the first transceiver. The second transceiver includes a first antenna is used for receiving the first electromagnetic wave, a second antenna designed to transmit the second electromagnetic wave, and a processor electrically associated with the first and second antennas. The processor receives the electrical signal that indicates the distance from the first antenna of the second transceiver. The processor also modulates the characteristics of the second electromagnetic wave relative to an electric signal.

Specified modulated characteristic of the second electromagnetic wave is one feature in the form of amplitude or frequency.

Said first transmitter includes a transmitting part mounted on the first end element, and a receiving part mounted near the first end element.

The first transceiver includes a transmitter electrically associated with the specified first antenna of this block with the specified transmitter p is operating at a frequency of from about 30 kHz to about 300 MHz. The second transceiver includes a transmitter electrically associated with the specified second antenna of this block with the specified transmitter operates at a frequency of from about 300 kHz to about 6 GHz.

The second transceiver inductively associated with a first transceiver and includes a power supply circuit electrically associated with the specified first antenna collects the electrical energy through inductive coupling with the first transceiver.

The second transceiver includes a sensor electrically associated with the specified processor, with the specified sensor is used for signal transmission on the specified processor corresponding to the signal on the specified input of the second transceiver and the second end of the element.

The specified sensor is one of the devices in the form of an accelerometer, thermocouple or pressure sensor.

The specified processor operatively generates a specified characteristic of the second electromagnetic wave with respect to the specified distance and the specified sensor signal.

The processor includes one of the devices in the inverter voltage and frequency, microprocessor, microcontroller or microcomputer.

In accordance with another aspect of the present invention proposes a method of determining the distance between the first and second end elements pneum the political suspension, which includes the use of the transmitter, which is mounted near the first end element and transmits the first electromagnetic wave transceiver, which is installed at a distance from the transmitter that is installed next to the second end element and serves to transmit the second electromagnetic waves. The method further includes forming an electrical signal in the transceiver using the first electromagnetic wave and modulating the second electromagnetic wave by the distance between the transmitter and the transceiver. The method includes determining a distance between the transmitter and the transceiver, based on the second modulated electromagnetic waves.

The method may additionally include the specified modulation of the second carrier using a modulation signal based on amplitude modulation or frequency modulation to generate the specified second modulated electromagnetic wave.

Modulation of the second carrier includes the formation of this modulating signal on the basis of the specified electric signal.

The method comprises the step of installing a receiver separately from the specified transceiver, with the specified receiver accepts the specified second modulated electromagnetic wave and extracts from it moduler the store signal.

BRIEF DESCRIPTION of DRAWINGS

Figure 1 - display system distances in accordance with the present invention, shown in operating condition on the vehicle.

Figure 2 is a side view, partially in cross section, of one exemplary variant of the pneumatic suspension unit including a display system distances in accordance with the present invention.

Figure 3 is a schematic representation of one exemplary variant of the system indicating the distance in accordance with the present invention.

Figure 4 - schematic diagram of another exemplary variant of the display system in accordance with the present invention.

Figure 5 is a schematic representation of one exemplary variant of the transceiver in accordance with the present invention.

Figure 6 - schematic representation of another exemplary variant of the transceiver in accordance with the present invention.

DETAILED description of the INVENTION

Refer now to the drawings, in which exemplary embodiments shown in the embodiment of the present invention without limitation this option. The figure 1 shows a vehicle 100 having a sprung mass, such as the body of the vehicle 102, and an unsprung mass, such as axis 104 and wheels 106. Between pogression and unsprung masses of the vehicle has plenty of damping elements, for example, the shock absorbers 108 fixed accordingly. Additionally, many pneumatic elastic elements, for example, blocks pneumatic suspension 110 is located between the sprung and unsprung masses of the vehicle near the wheel 106 and the shock absorbers 108.

The vehicle 100 also includes a compressed gas 112, which communicates with the pneumatic suspension units 110 and operatively selectively applies to the suspension blocks and produces from them a compressed gas. The air suspension system 112 includes a source of compressed gas, for example, a compressor 114, and may include a tank for storing gas, for example, the container 116 for receiving and storing compressed gas from a compressed gas source. The system 112 can optionally include a suitable system of exhaust gas, for example, the muffler 118 to output exhaust gases from the system.

The air suspension system 112 may communicate with elastic elements in any suitable way. For example, the system 112 can include a valve Assembly 120 or other suitable device or host for the sampling distribution of gas under pressure between the source of compressed gas or springs and elastic elements. As shown in the exemplary variant embodiment of the invention in figure 1, the compressor 114, the cylinder 116 and the muffler 118 reports which are stated by the flow of gas from the valve Assembly 120. In addition, the pneumatic suspension units 110 are communicated to the flow of gas from the valve Assembly 120 through the gas supply lines 122. Thus, the valve Assembly 120 may be selectively opened to supply compressed gas from the compressor and/or of the container to one or more sides of the pneumatic suspension. In addition, the valve Assembly 120 may be selectively opened to release gas under pressure from one of several blocks of the suspension through the muffler 118 or other suitable device. It should be understood that the above-described air suspension system and its operation are merely examples, and that any other suitable medium under pressure, the system and/or method of operation can equally be used in the present invention.

The vehicle 100 also includes a control system of a suspension 124 to selectively effect on one or more components of the suspension system, for example, the shock absorbers 108, the pneumatic suspension units 110 and/or system compressed gas 112. The control system of a suspension 124 includes the electronic control unit 126, is connected to one or more elements of the valve Assembly 120, for example, through the communication line 128, for selective exposure and/or operation of this suspension. In addition, the electronic control device 126 communicates with the blocks is nematicheskoi suspension 110 in an appropriate way, for example, through the communication line 130.

Control suspension, such as the control system 124 may be different. For example, the control system 124 may be used to adjust the height (i.e. to selectively raise or lower the sprung mass of the vehicle). In another example, the system control suspension, for example, in the control system 124 may be used to align (i.e. to support the sprung mass of the vehicle, basically, at a certain level). Taking into account this General connection with the height control and regulation, in the control system suspension typically use one or more height sensors or distance sensors to control the height and/or orientation of the vehicle. Well-known and widely used various sensors height and/or the display unit of distance, as discussed in an earlier section of this description. As an alternative device, the pneumatic suspension units 110 include a display system distances in accordance with the present invention, which emit electromagnetic waves 132 and 134, to determine and report data about the vehicle's height or distance between two vehicles and the elements of the suspension system.

One exemplary variant of the pneumatic element is important in accordance with the present invention shown in figure 2 in the form of a pneumatic suspension unit 200, which includes a first or upper stop element 202, a second or lower end element 204, and a flexible elastic wall 206, pinned between them. The first or upper stop element 202 in the figure is located along the respective upper component of the vehicle, UVC and a second or lower end element 204 is located along the respective lower component of the vehicle LVC. The upper and lower components of the vehicle can, for example, be parts of the sprung and unsprung masses of the vehicle or may be associated with these parts. In addition, it should be noted that the first and second end elements may be respectively mounted on upper and lower components of the vehicle in any suitable way, for example, by the use of connectors (not shown). In addition, it should be understood that the pneumatic suspension unit 200 shown in figure 2, is a structure of type pneumatic suspension with obkatyvayet aperture. However, it is clear that this construction is merely exemplary, and that any other suitable construction may also be used.

Elastic wall 206 at least partially defines the chamber of the spring 208 located between the end elements 202 and 204. The corresponding line FLN, as one of the h lines 122 supply gas under pressure to figure 1, for example, communicates with the chamber of the spring 208 through a hole made in one of the final elements of the pneumatic suspension unit, in particular, the channel 210 passing through the first end element 202. Suitable connector or fitting 212 can be used to support work message line supplying gas under pressure FLN camera spring 208 through the channel 210.

The pneumatic suspension unit 200 also includes a display system distances (non-position), which contains the first transceiver 214 and the second transceiver 216, located at a distance D1 from the first transceiver. The first transceiver 214 may communicate with one or more devices or elements through conductive load 218.

For example, the conductive load 218 may be an element of the communication line 130 in figure 1, passing between the pneumatic suspension unit 110 and the electronic control device 126. In addition, electricity can be supplied from an external power source (not shown), for example, from the alternator or the battery of the vehicle. However, as shown in figure 2, the second transceiver 216 is preferably a radio transmitter. Thus, communication with the second transceiver 216 is performed using the first electromagnetic wave EW1 and the second is elektromagnitnuu wave EW2.

In an exemplary variant embodiment of the invention shown in figure 2, the first transceiver 214 is installed on the first target element 202 and the second transceiver 216 is set to the second target element 204. The first and second transceivers can be mounted on finite elements in any suitable way, for example, using suitable connectors, glue, brackets or integrating (e.g., by welding) transceiver or its components with finite element. It should be understood that this device is just a rough version, and that any system components display distances in accordance with the present invention can be installed in other positions, orientations and/or with other devices. As shown in figure 2, the first and second transceivers can be used in an inconsistent orientation. Thus, in an exemplary variant embodiment of the invention shown in figure 2, the second transceiver 216 is located approximately in the center of the second target element, while the first transceiver 214 is located on the outside on the outer edge of the first end of the element. Similarly, the first transceiver 214 can include the second part A, which is mounted separately from the first part and associated with one or more other devices, or ale is nami through a conductive load 218a Centralnaya street. In this device, the first part may be a transmitting part and the second part may be receiving portion. However, any other suitable configuration, device or method may be used alternatively. In addition, it should be understood that the distance D2 between the first transceiver 214 and the first end element 202, and the distance D3 between the second transceiver 216 and the second end element 204, will typically be a fixed distance. Experts in the art know that the distance between the transceivers, which is represented as a dimension D1 in figure 2, may also represent the height of the pneumatic suspension unit 200, indicated by the size of D4, and that other sizes or distances can be determined in a similar manner.

One exemplary variant embodiment of the invention in the form of a display system distance of 300 is schematically shown in figure 3 and includes a first transceiver 302 and the second transceiver 304, located at a distance D1 from the first transceiver 302. The first transceiver 302 is connected to a suitable external power source, such as battery or alternator of the vehicle, for example, through a conductive load 306. In addition, the first transceiver 302 may be connected with one or more other system is and/or elements 308, for example, through a suitable conductive load 310.

The first transceiver 302 includes a transmitter 312 and the first antenna 314 connected to the transmitter. Accordingly, a stable voltage can be applied to the transmitter 312 from an external power source (not shown) through the load 306. Alternatively, the first transceiver 302 may include a power supply circuit 316 associated with conductive load 306 for receiving electrical energy from a suitable source of power. Circuit 316 may be output conditioned power of the appropriate voltage and/or current for use in other components of the transceiver 302. For example, the power supply circuit 316 shown in figure 3, is electrically connected to the transmitter 312, provides conditioned power for the transmitter. The transmitter 312 is working and returns 1 rectangular pulse signal, which is passed as the first electromagnetic wave EW1, using the first antenna 314.

The transceiver 302 also includes a receiver 318 is electrically connected to the power circuit 316, and the second antenna 320 is electrically connected to the receiver 318. The second transceiver 304 includes the first working antenna 322, which receives the first electromagnetic wave EW1. The second transceiver includes a second robocoaster 324, which is transmitting the second electromagnetic wave EW2, take the second antenna 320 of the first transceiver 302 and received by the receiver 318 of this transceiver. The second transceiver 304 can generate a modulating signal corresponding to the input signal current on the connected components of the display system distances, such as structural components, on which is mounted a second transceiver, and to use a modulating signal for the formation of such characteristics as frequency or amplitude of the second electromagnetic wave EW2. A receiver operatively extracts the baseband signal from the second electromagnetic wave and generates an output signal to other devices and/or systems suitable way, for example, components or device 308 via a conductive load 310. Alternatively, the first transceiver 302 may include a processor 326 connected to the power circuit 316, which provides conditioned power. In addition, the processor 326 is in electrical communication with the receiver 318 and can get the resulting output signal. The processor may then decode or translate the output signal as data and/or other information, such as data associated with distance, acceleration, temperature level, and the level of the pressure or other input parameters. Data and/or other information may be transferred to other devices or systems, for example, in a system or network of a vehicle 328, for example, through a conductive load 330.

When the first electromagnetic wave EW1 is transmitted from the first transceiver 302, using the first antenna 314 and received by the first antenna 322 of the second transceiver 304. In one exemplary variant embodiment of the invention, the first antenna 322 of the second transceiver 304 includes an inductive element (not shown) or other suitable circuit or component, and the first electromagnetic wave EW1 generates an electrical output across or along this inductive element to provide power to the second transceiver 304. Alternatively, the second transceiver 304 may be connected to a separate power source, instead of using an inductive connection with the first transceiver 302. experts in the art know that the properties of electromagnetic waves vary depending on the distance traveled by the electromagnetic wave, according to known dependencies. Thus, using suitable computing device, or comparison, the distance traveled, the first electromagnetic wave EW1 (i.e. the distance D1 between the first and second transceivers)may be the predelino the second transceiver and transmitted to the first transceiver or other component. Alternatively, the signal corresponding to the distance travelled first electromagnetic wave EW1, and/or other data or information may be transmitted from the second transceiver to the appropriate device or components for receiving waves EW1 and determine the distance and/or other data or information. Such suitable components may include, for example, the receiver 318 and/or the processor 326 of the first transceiver.

Another exemplary variant of the display system 400 distance is shown in figure 4 and include transmitting part 402, the receiving part of the transceiver 404 and 406. The transmitting part 402 includes a transmitter 408 and an antenna 410, connected to the transmitter, which quickly generates a rectangular pulse signal, which is passed as the first electromagnetic wave EW1, using the antenna 410. The transmitter 408 may receive conditioned power from an external power source through a suitable conductive load, for example, the load 412. Alternatively, the transmitting portion 402 may include a power circuit 414, which receives electric power from an external power source and provides the output power for the transmitter 408.

Receiving portion 404 includes a receiver 416 and the antenna 418 is electrically connected to the receiver 416. Air-conditioned, power can be received from the external IP is the source of electricity through a conductive load, for example, the load 420. Alternatively, the power supply circuit 422 may be included in the receiving portion 404, which may receive power from an external power source and to apply air power on the receiver.

Receiver 416, shown in figure 4, is electrically connected to a component or device 424 through a conductive load 426, and makes entering signals. Alternatively, the processor 428 may be included in the receiving portion 404, which is electrically connected to the power circuit 422 and receiver 416. The processor 428, if it is available, can handle the output data, signals and/or other information to other components or systems, such as vehicle or system network 430, for example, through a suitable coupling device, for example, through a conductive load 432. The transceiver 406, shown in figure 4, is located at a distance D1 from the transmitting part 402. In this case, the first electromagnetic wave EW1 goes the distance D1 and accepted the first antenna 434 transceiver 406. The transceiver 406 receives the second electromagnetic wave EW2 from the second antenna 436. Electromagnetic wave EW2 modulated to transmit signals, data and/or other information transmitted by the receiving part 404, in a manner similar to the discussed method above in respect of the system indicating a distance of 300. The system 400 differs from the system indicating a distance of 300, however, in this construction, the receiving portion 404 may be installed and secured separately from the transmitting part 402. However, the receiving portion 404 is located at a distance D5 from the transceiver 406, which is larger than the distance D1. However, it should be understood that the distance D5 is simply representative of the distance that may be different from the distance D1, and thus can be represented by a distance greater than or less than the distance D1.

One exemplary variant of the transceiver, such as transceiver 216, 304 and 406, which are, respectively, shown and discussed in figures 2-4, shown in figure 5 as a transceiver 500, which includes the first antenna 502 and the second antenna 504. The first antenna 502 operatively receives the first electromagnetic wave EW1 and may include an inductive element (not shown) or other suitable device or components. The first electromagnetic wave EW1 generates an electrical signal across or along this inductive element to supply power to the transceiver. The transceiver 500 also includes a power supply circuit 506 is electrically connected with the first antenna 502. The power supply circuit 506 may operate to supply electrical energy transmitted across or along the antenna 502 of the first e is tromagnetic wave EW1. Alternatively, it may be used a separate power supply such as a battery (not shown). The processor 508 is electrically connected with the antenna 502 and the power supply circuit 506 via electric wires 510 and 512, respectively. The power supply circuit 506 is used to supply power to the processor, which, therefore, is the condition for it to work. In addition, the electrical signal from the antenna 502 is fed into the processor 508 electric wire 510, and output processor modulating signal is transmitted to the transmitter 514 electric wire 516. In one exemplary variant embodiment of the invention the output of the modulation signal processor depends on the distance between the device or component that transmits the first electromagnetic wave (for example, the transceiver 302 or part of the transmitter 402) and the transceiver 500. The power supply circuit 506 is also connected to the transmitter 514 electric wire 518 and delivers electricity to this transmitter. The transmitter 514 operatively generates a rectangular pulse signal and combines the rectangular pulse signal with a modulating signal from the processor 508 for transmitting the second electromagnetic wave EW2, using the second antenna 504.

In one exemplary variant embodiment of the invention, the processor 508 may be used to transfer or conversion of an electrical signal poluchennogo is from the antenna 502, in the modulating signal variable in amplitude and/or frequency, in which changes in amplitude and/or frequency correspond to the level of the voltage or current of the electrical signal coming from the antenna. It should be noted that the level of voltage and/or current of the electrical signal coming from the antenna will vary depending on the distance traveled, the first electromagnetic wave, which corresponds to the distance between the transceivers, or other elements. Thus, the distance measurement may be transmitted as a change in frequency and/or amplitude of an electromagnetic wave. Therefore, the electromagnetic wave EW2 modulated by the distance between the first and second transceivers. Modulated electromagnetic wave can be received by the receiving device or components, for example, the first transceiver 302 or receiving portion 404, which can extract the modulating signal and to transmit it to the various components or systems that can determine the distance on the basis of this signal. Alternatively, the receiving device or components may convert the baseband signal or otherwise determine the distance based on the modulation of the second electromagnetic wave EW2 and output data and/or information corresponding to this distance.

One note is rum a suitable device for use as a processor 508 is driven generator or inverter voltage, frequency, which promptly provides the output of variable frequency in response to changes in input voltage. Suitable Converter voltage-frequency is supplied by National semiconductor Corporation, Santa Clara, Calif., under the product designation LM231AN.

Another exemplary alternative embodiments of the invention are transceivers 216, 304, 406 and 500 are shown and discussed in figures 2-5. The figure 6 shows the transceiver 600, which includes the first antenna 602 and the second antenna 604. The transceiver 600 also includes a power supply circuit 606 is electrically associated with an antenna 602, and serves to collect the electrical energy induced in the first antenna, as discussed in detail above. The processor 608 is connected to the supply circuit 606 via electric wires 610 and receives electrical energy, which, accordingly, provides the operation of this device. The first sensor 612 is included between the antenna 602 and the processor 608 wires 614 and 616. In one exemplary variant embodiment of the invention the sensor 612 responds to an output signal associated with the distance, passed the first electromagnetic wave EW1, as discussed above, and transmits the output signal to the processor 608. Similarly, the processor 508 in the transceiver 500, the first sensor 612 can promptly change the frequency and/or amplitude of the output signal in response to and the application of voltage and/or current from the antenna 602 wire 614. Alternatively, as the sensor 612 can be used in analog-to-digital Converter or other suitable device, which receives the input signal from the wire 614 and transmits a digital output signal to the processor 608 wire 616. Similarly, the processor 608 may include another device, for example, a programmable microprocessor, microcontroller or microcomputer, which is able to receive the digital signal from the sensor and generate a modulation signal corresponding to the distance travelled, the first electromagnetic wave.

The processor generates a modulating signal at the transmitter 618 through an electric wire 620. The transmitter 618 is electrically connected to the power circuit 606 via an electric wire 622. The transmitter generates a second rectangular pulse signal and combines it with a modulating signal to create a second modulated electromagnetic wave EW2, which is transmitted to the second antenna 604.

In one exemplary variant embodiment of the invention, the transceiver 600 may also include one or more additional components, such as sensors 614 and 616. It should be noted that can be used for components of any suitable number, type and/or species, for example, the sensors are responsive to output signals from the sensors indicating the input signal acting on the other part and the and components for example, acceleration sensors, pressure or temperature. As shown in figure 5, the sensor 614 is included between the power supply circuit 606 and the processor 608 through conductive elements 628 and 630. In addition, the sensor 616 is electrically conductive element between the supply circuit and the processor through conductive elements 632 and 634. Examples of suitable sensors include, for example, acceleration sensors; temperature sensors, such as thermocouples and pressure sensors.

If you are using additional components, for example, the sensors 624 and/or 626, the processor 608 is preferably operative to receive output signals from these components, as well as from the sensor 612. The processor may then transmit signals or data and/or information to the appropriate receiving device or component. One suitable example includes a processor 608, uniting or encoding various output messages and generates a modulation signal for transmitting data and/or information from sensors or other components. An alternative can be used coding scheme signal, such encoding is performed with the frequency shift, for example, phase shift keying. Then the transmitter 612 modulates a carrier using a modulating signal and data and/or information for transmission to the first transceiver using the second electromagnetic wave EW2, kaabardino above. Then the first transceiver or receiving portion can extract and decode the baseband signal as an output signal, data and/or information obtained from multiple sensors. The first electromagnetic wave EW1 and the second electromagnetic wave EW2, respectively, based on the first and second rectangular signals with the unmodulated carrier. Rectangular pulse signals from the unmodulated carrier can be formed in any suitable way, and one exemplary option is the formation of the corresponding transmitter. For example, the first rectangular pulse signal may be generated by the transmitter 312 or 408. Similarly, the second rectangular pulse signal may be generated by the transmitter 514 or 618. It should be noted that for signal carrier can be any suitable properties and/or characteristics. For example, the carrier signals can be transmitted at any suitable frequency, for example, from about 20 kHz to about 30 GHz. In one exemplary variant embodiment of the invention, the first electromagnetic wave EW1 based on the first carrier signal having a frequency in the range from about 30 kHz to about 300 MHz. In addition, this exemplary variant embodiment of the invention includes a second electromagnetic wave EW2, on the basis of the second carrier signal, Meuse what about the frequency in the range from about 300 kHz to about 6 GHz. However, it should be understood that alternative can be used with any suitable frequency or range of frequencies.

Although the present invention has been described with specific examples of its implementation, and considerable attention was given here to the structural relationships between the components, it should be understood that it can be made various changes and modifications shown in the drawings and described embodiments, embodiments of the invention, without leaving the spirit and scope of the invention. Accordingly, the present description should be interpreted simply as an example and not a limitation of the present invention. Similarly, it should be understood that all such modifications and changes are part of the present invention, the scope of which is defined by the claims.

1. Display system distances for the suspension system of a vehicle, which includes a pneumatic suspension unit with the first and second end elements and the elastic wall, located between them, with indication of the distance contains
the transmitter, located near the first end element and serving to transmit the first electromagnetic wave;
transceiver, located next to the second end element at a certain distance from the transmitter, the transceiver receives the decree of the ing the first electromagnetic wave and transmitting the second electromagnetic wave, in this case, the transmitter modulates the specified second electromagnetic wave with respect to the specified distance, and
the receiver, located separately from the transceiver and used to receive the specified second modulated electromagnetic waves.

2. Display system distances according to claim 1, in which the transceiver is a first transceiver and the second transceiver includes a transmitter and a receiver.

3. Display system distances according to claim 2, in which the second transceiver operatively determines the distance based on the modulation of the second electromagnetic wave.

4. Display system distances according to claim 2, in which the first and second transceivers transmit data and information between them using the modulated second electromagnetic wave.

5. Display system distances according to claim 2, in which the first transceiver and the second transceiver inductively connected using the first electromagnetic wave.

6. Display system distances according to claim 1, in which at least the transmitter or receiver is mounted on the first end element, and the transceiver is mounted on the second end of the element.

7. Unit air suspension containing
the first target element;
the second target element, located at a distance from the specified first destination is lementa;
elastic wall installed between the first and second end members and at least partially forming an air chamber between them;
the first transceiver mounted on the specified first destination element, the first transceiver has a first antenna is used for transmission of the first electromagnetic wave and a second antenna is used for receiving the second electromagnetic wave, and
a second transceiver mounted on the specified second target element at a certain distance from the first transceiver, the second transceiver has a first antenna is used for reception of the specified first electromagnetic wave, the second antenna is used for transmission of the specified second electromagnetic wave, and a processor that is included between the first and second antennas, which receives an electrical signal related to the distance from the first antenna of the second transceiver, and modulating the characteristic of the second electromagnetic wave with respect to the specified electric signal.

8. The pneumatic suspension unit according to claim 7, in which the first transceiver includes a receiver, electrically connected to the second antenna and forming an output signal depending on the distance, and a processor electrically connected to the specified pickup is nick, moreover, the processor receives the output signal and determines distance based on it.

9. The pneumatic suspension unit according to claim 7, in which the second transceiver includes a sensor electrically associated with the specified processor, the sensor generates an output signal for transmission on the specified processor corresponding to the signal at the second transceiver and the second target element.

10. The method of determining the distance between the first and second end elements of the suspension, containing the following stages:
(a) use of a transmitter, which is mounted near the first end element and the transmission of the first electromagnetic wave;
(b) the use of the transceiver, which is installed at a distance from the transmitter next to the second end element and serves to transmit the second electromagnetic wave;
(c) forming an electrical signal in the specified transceiver, using the specified first electromagnetic wave;
(d) modulation of the specified second electromagnetic wave by the distance between the transmitter and the transceiver, and
(e) determining a distance between the transmitter and the transceiver based on the second modulated electromagnetic waves.

11. The method according to claim 10, in which the transceiver includes a sensor generating a signal with the corresponding signal on the transceiver and the second end element, and stage (d) includes the modulation specified second electromagnetic wave with respect to the specified distance and the specified sensor signal.

12. The method according to claim 11, in which stage (e) includes determining the distance and the specified input level based on the second modulated electromagnetic waves.



 

Same patents:

FIELD: physics.

SUBSTANCE: method involves reception, emission and relay of a primary and terminal radio signals between a spacecraft, primary station and an alternate station. An additional primary radio signal and an additional terminal radio signal is further relayed from the spacecraft to the primary station where these signals are received. Distance between the spacecraft, primary and alternate stations is determined from the time interval between emission of the signal and reception of the primary and additional primary signals and reception of terminal, auxiliary terminal, additional terminal and auxiliary additional terminal radio signals at the primary station taking into account Doppler frequency shift.

EFFECT: more accurate determination of distance between spacecraft and stations.

6 cl, 2 dwg

FIELD: the invention refers to measuring technique and may be used for passive detection and direction finding of communications systems, location and control, using complex signals.

SUBSTANCE: the technical result is achieved due to using of the reliability criterion of detection-direction finding and solution of the problem of the "reference signal" at compression of signal spectrum with low spectral power density of an unknown form. That approached quality of matched filtering at low signal-to-noise ratios to maximum attainable quality for the completely known reference signal. At that sensitivity of detection and direction finding of signals with extended spectrum increases in relation to the prototype in N times where N - a number of antennas of the receiving array.

EFFECT: increases effectiveness of detection-direction finding of the sources radiating broad class signals with extended spectrum of unknown form having energy and time secretiveness.

2 cl, 1 dwg

FIELD: radio engineering.

SUBSTANCE: device has receiver, distance converter, synchronizer, azimuth and location angle transducer unit, indicator unit, TV distance transducer, TV coordinator unit, secondary processing unit and unit composed of two adders.

EFFECT: high accuracy in determining angular coordinates in optical visibility zone.

1 dwg

FIELD: finding of azimuth of radio emission source (RES) in wide-base direction finding systems.

SUBSTANCE: angle of azimuth of RES is measured with high degree of precision due to elimination of methodical errors in direction finding caused by linearization of model electromagnet wave propagation wave front. As surface of RES location the plane is used which has RES line of location which has to be crossing of two hyperbolic surfaces of location corresponding to difference-time measurement. Method of RES direction finding is based upon receiving its signal by three aerials disposed randomly, measuring of two time differences of RES signal receiving by aerials which form measuring bases and subsequent processing of results of measurement to calculate values of RES angles of azimuth and coordinates of point through which the RES axis of sight passes. The data received are represented in suitable form. Device for realization of the method has three aerials disposed at vertexes of random triangle, two units for measuring time difference of signal receiving, computing unit and indication unit. Output of common aerial of measuring bases is connected with second inputs of time difference meters which receive signals from outputs of the rest aerials. Measured values of time differences enter inputs of computing unit which calculates values of RES angle of azimuth and coordinates of point through which the RES axis of sight passes. Data received from output of computing analyzing unit enter indication unit intended for those data representation.

EFFECT: widened operational capabilities of direction finder.

2 cl, 7 dwg

FIELD: passive systems of detection of radar signals, in particular, remote antenna devices, applicable at equipment of floating facilities of various purpose.

SUBSTANCE: the radar signal detection system has a series-connected receiving antenna, input device, in which the received signals are divided into two frequency channels and amplified by microwave, receiving device including a unit of detectors of amplifiers of pulse and continuous signals, as well as two units of signal processing connected by means of an interface trunk of the series channel to the device of secondary processing, control and representation made on the basis of a computer.

EFFECT: expanded functional potentialities of the system that is attained due to the fact that the radar signal detection system has a series-connected receiving antenna, etc.

7 dwg

FIELD: radio engineering.

SUBSTANCE: proposed method and device can be used for measuring difference in signal arrival time from spaced receiving positions and in its reception frequency dispensing with a priori information about signal structure and about modulating message. Proposed device has two signal receiving means, device for defining arguments of signal two-dimensional digital cross-correlation function maximum , two analog-to-digital converters, three fast Fourier transform processors, cross-spectrum computer, and arithmetical unit. Proposed method depends on calculation of two-dimensional cross-correlation function using inverse fast Fourier transform of plurality of cross-spectrums, spectrum of one of signals being transformed for generating mentioned plurality of cross-spectrums by way of re-determining index variables.

EFFECT: enhanced computing efficiency, eliminated discreteness error.

3 cl, 1 dwg

The invention relates to electrical engineering and can be used in installed on mobile platforms passive dynamical systems determine the line positions of the sources of radio emission

The invention relates to radar systems and can be used, for example, in navigation, meteorology, geodesy

FIELD: physics; control.

SUBSTANCE: invention relates to systems for determining orientation and exchanging information. The device has a first end element, a second end element, a flexible wall, a transceiver, a responder and a sensor. The method involves powering the transceiver and radio transmission of electromagnetic oscillations, receiving electromagnetic oscillations and that way powering the responder, receiving a distance signal depending on distance between the transceiver and the responder, generation of the output signal of the sensor, modulation of electromagnetic oscillations depending on the distance signal and output signal of the sensor using the responder, determination of the numerical value of the distance and value of the parametre of the vehicle suspension element based on modulation using the transceiver.

EFFECT: increased accuracy of determining suspension parametres.

10 cl, 20 dwg

Wheel suspension // 2356750

FIELD: automobile production.

SUBSTANCE: invention deals with wheel suspension of sport radio-controlled cars and may be used as wheel suspension for motor cars. Suspension includes lower and upper levers attached to the frame (body) by means of joints and axes. Steering knuckle is connected with wheel axis and connected with lower and upper levers by means of joints. Damper is fixed on the frame (body). One end of the spring is attached to the damper. Also, there is subsidiary lever for transmitting wheel vibration to damper. Note that damper represents rotation damper, and subsidiary lever has variable length. One end of this lever is connected with damper input shaft via connection capable to transmit rotational vibrations of the lever to damper shaft. The other end of this lever is joint with lower or upper suspension lever or with steering knuckle in maximum possible wheel proximity. Moving end of the spring presses this lever from above.

EFFECT: improvement of damping effect quality, and increase of service life.

2 cl, 3 dwg

FIELD: mechanic.

SUBSTANCE: a single wheel block designed with the possibility of installation on the body of a vehicle, contains a wheel frame, which serves as a support for the suspension mechanism and the wheel assembly installed on the suspension mechanism. The suspension mechanism contains a Z-shaped link consisting of three levers connected end to end so that they can rotate. The suspension mechanism is fixed to the wheel frame so that the mechanism can be rotated, and a damping device absorbs the suspension mechanism vibration. The wheel suspension hinge support intended for the installation between two rotatable elements contains a cylindrical bushing support limiting the central shaft and having open ends with curved belts. The bushing support is located in a bored hole of the first rotational element. This bushing support supports the axle passing through the flanges with holes in the second rotational element. The flanges are located at each side of the bored hole and the bushing support. The flange holes have curved surfaces for reception of the mating curved bushing support belts.

EFFECT: increased manoeuverability, increase effective load, lower tyre wear.

28 cl, 18 dwg

FIELD: transport engineering.

SUBSTANCE: proposed pneumatic control system is designed for use in vehicles. Said system employs air limiting valve to limit air delivered into pneumatic suspension or bled from suspension in response to control signal.

EFFECT: improved stability in motion, reduced to minimum air losses in pneumatic suspension control system at normal operation of vehicle owing to use of limiting air valve.

11 cl, 8 dwg

FIELD: transport engineering; wheel suspensions.

SUBSTANCE: according to invention vehicle wheel suspension contains wheel hub whose upper part is mechanically connected either with body/frame of vehicle or with vehicle beam by means of structural member. Lower part of said hub is mechanically connected with one end of V-shaped movable lower lever whose two other ends are connected with vehicle beams. Suspension contains also spring one end of which is connected with body/frame of vehicle, and other end is connected wither with structural member of vehicle or with lower movable lever. Suspension is provided with suspension rate adjuster secured on body/frame of vehicle, actuating member of adjuster being connected with movable lower lever. Adjuster contains torsion bar one end of which is connected with drive, and leverage and shaft installed in housing. One end of shaft is connected with other end of torsion bar, and lever is fitted on its other end. Actuating member of device connected with lower movable lever is made in form of tie-rod hinge connected with leverage. Said leverage is made in form of bell crank hinge-mounted in housing. One arm of bell crank is designed for hinge connection with tie-rod. Roller installed for rotation on other arm of bell crank is designed for engagement with lever on end of shaft. Invention is aimed at changing of suspension rate with provision of nonlinear characteristics and changing of clearance and provision of additional heeling of vehicle to side of cornering to increase stability of vehicle.

EFFECT: improved stability at cornering.

10 cl, 8 dwg

The invention relates to the transport industry, in particular for vibration protection systems of train crews, and can be used to improve the dynamic performance of specialized freight cars

The invention relates to the transport industry, in particular for vibration protection systems of train crews, and can be used to improve the dynamic performance of electric locomotives

The invention relates to a high-speed monorail transport systems mounted type

The invention relates to road transport and relates to devices for recovery performance rack-mounted hydro-pneumatic dampers imported, and devices for filling gas and liquid absorbers ZAZ-1102, M-2141

Way isolation // 2110709
The invention relates to the field of engineering, namely by means of an active vibration isolation of various objects

FIELD: transport engineering; wheel suspensions.

SUBSTANCE: according to invention vehicle wheel suspension contains wheel hub whose upper part is mechanically connected either with body/frame of vehicle or with vehicle beam by means of structural member. Lower part of said hub is mechanically connected with one end of V-shaped movable lower lever whose two other ends are connected with vehicle beams. Suspension contains also spring one end of which is connected with body/frame of vehicle, and other end is connected wither with structural member of vehicle or with lower movable lever. Suspension is provided with suspension rate adjuster secured on body/frame of vehicle, actuating member of adjuster being connected with movable lower lever. Adjuster contains torsion bar one end of which is connected with drive, and leverage and shaft installed in housing. One end of shaft is connected with other end of torsion bar, and lever is fitted on its other end. Actuating member of device connected with lower movable lever is made in form of tie-rod hinge connected with leverage. Said leverage is made in form of bell crank hinge-mounted in housing. One arm of bell crank is designed for hinge connection with tie-rod. Roller installed for rotation on other arm of bell crank is designed for engagement with lever on end of shaft. Invention is aimed at changing of suspension rate with provision of nonlinear characteristics and changing of clearance and provision of additional heeling of vehicle to side of cornering to increase stability of vehicle.

EFFECT: improved stability at cornering.

10 cl, 8 dwg

FIELD: transport engineering.

SUBSTANCE: proposed pneumatic control system is designed for use in vehicles. Said system employs air limiting valve to limit air delivered into pneumatic suspension or bled from suspension in response to control signal.

EFFECT: improved stability in motion, reduced to minimum air losses in pneumatic suspension control system at normal operation of vehicle owing to use of limiting air valve.

11 cl, 8 dwg

FIELD: mechanic.

SUBSTANCE: a single wheel block designed with the possibility of installation on the body of a vehicle, contains a wheel frame, which serves as a support for the suspension mechanism and the wheel assembly installed on the suspension mechanism. The suspension mechanism contains a Z-shaped link consisting of three levers connected end to end so that they can rotate. The suspension mechanism is fixed to the wheel frame so that the mechanism can be rotated, and a damping device absorbs the suspension mechanism vibration. The wheel suspension hinge support intended for the installation between two rotatable elements contains a cylindrical bushing support limiting the central shaft and having open ends with curved belts. The bushing support is located in a bored hole of the first rotational element. This bushing support supports the axle passing through the flanges with holes in the second rotational element. The flanges are located at each side of the bored hole and the bushing support. The flange holes have curved surfaces for reception of the mating curved bushing support belts.

EFFECT: increased manoeuverability, increase effective load, lower tyre wear.

28 cl, 18 dwg

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