CN115380291A

CN115380291A - Sensor device and probe device

Info

Publication number: CN115380291A
Application number: CN202080099511.7A
Authority: CN
Inventors: 邵帅
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2020-07-28
Filing date: 2020-07-28
Publication date: 2022-11-22
Also published as: WO2022021084A1

Abstract

A sensing device (110) and a detection device (120), the sensing device (110) comprising: a backscatter transmission module (111) and a processing module (112); the backscatter transmission module (111) is connected with the processing module (112); the processing module (112) is used for sending the coded information of the first object to the backscatter transmitting module (111); and the backscattering emission module (111) is used for carrying the coded information on the detection signal sent by the detection device (120) of the second object and backscattering the coded information to the detection device (120). The sensing device (110) and the detection device (120) can accurately provide the information of the first object to the detection device (120) through a backscattering technology, and the information is not influenced by the external environment, so that the accuracy of obtaining the information can be improved.

Description

Sensor device and probe device

Technical Field

The application relates to the technical field of car networking, in particular to a sensing device and a detection device.

Background

Vehicle networking technology (V2X) includes vehicle-to-vehicle communication, vehicle-to-other object (e.g., traffic lights), and vehicle-to-base station communication. The mature internet of vehicles technology can identify the model, size and other information of other vehicles running on the road in the automatic driving or auxiliary driving process, so that the running safety and traffic efficiency of the vehicles can be improved.

In the traditional car networking technology, a sensing device used for acquiring surrounding information mainly comprises a vehicle-mounted radar and an image sensor. The vehicle-mounted radar determines objects around the vehicle by transmitting radio frequency signals and analyzing the reflected signals, and the image sensor determines information such as vehicles, people and objects near the vehicle by shooting images around the vehicle and combining a computer vision algorithm.

However, although the vehicle-mounted radar has a good object detection function, it can only determine whether there is an object in the vicinity, and the accuracy of information such as the size of the vehicle acquired by the vehicle-mounted radar is low. The image sensor is greatly influenced by the environment, and cannot accurately acquire information in the environments of strong light, rainy days, heavy fog and dark night. Therefore, the accuracy of information acquisition by the sensing device provided by the prior art is low.

Disclosure of Invention

The embodiment of the application provides a sensing device and a detection device, and aims to solve the problem that the accuracy of information acquired through the sensing device in the prior art is low.

A first aspect of the present application provides a sensing apparatus, the sensing apparatus being disposed on a first object, the sensing apparatus comprising: the device comprises a backscattering emission module and a processing module;

the backscatter transmission module is connected with the processing module;

the processing module is used for sending the coded information of the first object to the backscatter transmitting module;

and the backscatter transmitting module is used for bearing the coded information on a detection signal sent by a detection device of a second object and backscattering the coded information to the detection device.

In an optional embodiment, the method further comprises: a transmitting and receiving antenna;

the receiving and transmitting antenna is used for transmitting the received detection signal transmitted by the detection device to the reverse scattering transmission module; or backscattering the coded information sent by the backscattering emission module to the detection device.

In an optional embodiment, the backscatter transmitting module includes a transistor;

the collector of the triode is connected with the transmitting and receiving antenna, the base of the triode is connected with the processing module, and the emitter of the triode is grounded;

the triode is used for backscattering the detection signal.

In an alternative embodiment, the backscatter transmission module further comprises a tunnel diode;

the cathode of the tunnel diode is connected with the base electrode of the triode, and the cathode of the tunnel diode is grounded;

the tunnel diode is used for improving the backscattering gain of the backscattering emission module.

In an optional embodiment, the backscatter transmission module comprises a radio frequency switch for backscattering the detection signal.

In an alternative embodiment, the processing module is connected to a control system of the first object;

and the control system of the first object is used for sending the information of the first object to the processing module and supplying power to the sensing device.

In an optional embodiment, the method further comprises: the system comprises a radio frequency receiving module, an energy management module and a radio frequency energy collecting module;

the radio frequency energy collection module is respectively connected with the radio frequency receiving module and the energy management module, and the energy management module is respectively connected with the backscatter transmission module and the processing module;

the radio frequency receiving module is used for receiving the radio frequency signal sent by the detection device and sending the radio frequency signal to the radio frequency energy collecting module;

the radio frequency energy collection module is used for converting the energy of the radio frequency signal into electric energy and transmitting the electric energy to the energy management module;

the energy management module is used for supplying power to the backscatter transmitting module and the processing module.

In an optional embodiment, the encoded information of the first object comprises at least one of: the method comprises the steps of identifying an identification code of a first object, a form of the first object and position information of the sensing device, wherein the position information is used for indicating a setting position of the sensing device on the first object.

In an alternative embodiment, the detection signal is a continuous wave signal or a continuous frequency conversion signal with a single frequency.

A second aspect of the present application provides a probe apparatus comprising:

the detection device is disposed on a second object, the detection device including: the device comprises a transmitting module, a receiving module and a modulation and demodulation module;

the transmitting module is used for transmitting a detection signal to a sensing device arranged on a first object;

the receiving module is used for receiving the coded information of the first object which is backscattered by the sensing device and takes the detection signal as a carrier wave;

the modulation and demodulation module is used for modulating the detection signal and demodulating the coded information of the first object taking the detection signal as a carrier wave.

the receiving and transmitting antenna is respectively connected with the transmitting module and the receiving module;

the receiving and transmitting antenna is used for sending the received detection information sent by the transmitting module to the sensing device and sending the received coded information backscattered by the sensing device to the receiving module.

In an optional embodiment, the method further comprises: a combiner;

the combiner is respectively connected with the transmitting module, the receiving module and the plurality of transceiving antennas;

the combiner is configured to combine the encoded information of the first object, which is received by the multiple transceiver antennas and uses the probe signal as a carrier, and send the combined encoded information to the receiving module, and transmit the probe signal sent by the transmitting module to the multiple transceiver antennas.

In an optional embodiment, the method further comprises: a phase controller and a processing module;

the phase controller is respectively connected with the transmitting module, the receiving module and the processing module;

the processing module is used for sending a pulse signal to the phase controller;

the phase controller is used for switching the transmitting module and/or the receiving module to be connected with one of a plurality of transceiving antennas according to the phase of the pulse signal.

In an optional embodiment, the method further comprises: a radio frequency switch;

the radio frequency switch is respectively connected with a plurality of receiving and transmitting antennas, the receiving module and the transmitting module;

the radio frequency switch is used for sending the detection signal sent by the transmitting module to a transmitting and receiving antenna which has a mapping relation with the transmitting module, and sending the coding information received by the transmitting and receiving antenna to a receiving module which has a mapping relation with the transmitting and receiving antenna.

In an optional embodiment, the transmitting module is further configured to transmit a radio frequency signal to the sensing device, where the radio frequency signal is used to power the sensing device.

In an optional embodiment, the encoded information of the first object comprises at least one of: the method comprises the steps of identifying the identification code of the first object, the form of the first object and position information of the sensing device, wherein the position information is used for indicating the setting position of the sensing device on the first object.

A third aspect of the present application provides a communication method applied to a sensing apparatus provided on a first object, including:

receiving a detection signal sent by a detection device arranged on a second object;

encoding the information of the first object to generate encoded information of the first object;

and backscattering the coded information to the detection device by taking the detection signal as a carrier wave.

A fourth aspect of the present application provides a communication method applied to a detection apparatus provided on a second object, including:

transmitting a detection signal to a sensing device provided on a first object;

and receiving the coded information of the first object which is backscattered by the sensing device and takes the detection signal as a carrier wave.

A fifth aspect of the present application provides a communication apparatus comprising:

the receiving module is used for receiving a detection signal sent by a detection device arranged on a second object;

the processing module is used for coding the information of the first object and generating the coded information of the first object;

and the sending module is used for backscattering the coded information to the detection device by taking the detection signal as a carrier wave.

A sixth aspect of the present application provides a communication apparatus comprising:

the device comprises a sending module, a receiving module and a processing module, wherein the sending module is used for sending a detection signal to a sensing device arranged on a first object;

and the receiving module is used for receiving the coded information of the first object which is backscattered by the sensing device and takes the detection signal as a carrier wave.

A seventh aspect of the present application provides a vehicle comprising: at least one sensing device according to the first aspect and at least one detection device according to the second aspect.

The application provides a sensing device and a detection device, and the sensing device comprises a backscattering emission module and a processing module. The backscatter transmission module is connected to the processing module, and the processing module is configured to send the encoded information of the first object to the backscatter transmission module. And the backscattering emission module is used for carrying the coded information on the detection signal sent by the detection device of the second object and backscattering the coded information to the detection device. Compared with the prior art, the encoding information of the first object can be accurately provided for the detection device through the backscattering technology, the influence of the external environment is avoided, and the accuracy of the acquired information can be improved.

Drawings

FIG. 1 is a schematic illustration of a vehicle provided in an embodiment of the present application;

fig. 2 is a schematic application diagram of a detection device and a sensing device provided in an embodiment of the present application;

fig. 3 is a schematic structural diagram of a sensing device according to an embodiment of the present disclosure;

fig. 4 is a schematic structural diagram of a backscatter transmitting module according to an embodiment of the present application;

fig. 5 is a schematic structural diagram of another backscatter transmission module provided in an embodiment of the present application;

fig. 6 is a schematic structural diagram of another sensing device block provided in the embodiment of the present application;

fig. 7 is a schematic structural diagram of a detection apparatus according to an embodiment of the present disclosure;

FIG. 8 is a schematic structural diagram of another detecting device provided in the embodiments of the present application;

FIG. 9 is a schematic structural diagram of another detecting device according to an embodiment of the present disclosure;

fig. 10 is a schematic diagram of a transceiver integrated module of a detection apparatus according to an embodiment of the present disclosure;

fig. 11 is a signaling interaction diagram of a communication method according to an embodiment of the present application;

fig. 12 is a schematic structural diagram of a communication device according to an embodiment of the present application;

fig. 13 is a schematic structural diagram of a communication device according to an embodiment of the present application.

Reference numerals are as follows:

110-a sensing device;

120-a detection device;

111-backscatter transmission module 111;

112-a processing module;

113-a transceiver antenna;

114-a control system of the first object;

1111-triode;

1112-tunnel diodes;

1113-radio frequency switch;

115-a radio frequency receiving module;

116-an energy management module;

117-radio frequency energy harvesting module;

121-a transmitting module;

122-a receiving module;

123-a modulation and demodulation module;

124-a control system of the second object;

125-a transceiver antenna;

126-a combiner;

127-phase controller;

128-a processing module;

129-radio frequency switch.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

However, although the vehicle-mounted radar has a good object detection function, it can only determine whether there is an object in the vicinity, and the accuracy of information such as the size of the vehicle acquired by the vehicle-mounted radar is low. The image sensor is greatly influenced by the environment, and cannot accurately acquire information in environments of strong light, rainy days, heavy fog and night. Therefore, the accuracy of the existing information acquisition through the sensing device is low.

In order to solve the above problem, the present application provides a sensing device and a detection device, so as to improve the accuracy of information acquisition by the sensing device. The invention conception of the application is as follows: the sensing device backscatters the encoded information to the detection device so that the detection device can acquire the relevant information. Because the encoding form transmitted in the backscattering form is not influenced by the external environment, and the encoded information is identified without error identification, the detector can acquire accurate information through the sensor.

The following describes an application scenario of the sensing device and the detection device provided in the present application.

In some scenarios, the sensing device and the detection device may be mounted on vehicles, thereby enabling information interaction between the vehicles. Fig. 1 is a schematic view of a vehicle according to an embodiment of the present disclosure, and as shown in fig. 1, a head portion and a front window portion of the vehicle may be mounted with a detection device, so that detection signals may be transmitted to a vehicle traveling ahead and vehicles traveling on both sides. Sensing devices can be installed at the tail part of the vehicle, the front window part of the vehicle and the rear window part of the vehicle, so that detection information of other vehicles can be received and coded information of the vehicle can be transmitted to other vehicles.

The detecting device can adopt a multi-antenna module structure. It should be noted that, in actual use, the number, the position, and the structure of the detecting device and the sensing device may be reasonably set according to specific situations, and the embodiment of the present application does not limit this.

On the basis of fig. 1, fig. 2 is a schematic application diagram of a detection device and a sensing device provided in the embodiment of the present application. As shown in fig. 2, a vehicle 101 transmits a detection signal through a detection device, and sensors on a vehicle 102, a vehicle 103, and a vehicle 104 around the vehicle 101 backscatter encoded information into the detection device on the vehicle 101 with the detection signal as a carrier wave after receiving the detection signal transmitted by the vehicle 101. After the detection device of the vehicle 101 receives the coded information of the backscatter from the vehicle 102, the vehicle 103 and the vehicle 104, the information of the vehicle 102, the vehicle 103 and the vehicle 104 is obtained from the coded information.

The information of the vehicle may include information such as an identification code of the vehicle, a model of the vehicle, a form of the vehicle, and a position of the sensing device on the vehicle.

It should be noted that the detection device and the sensing device provided in the embodiments of the present application may not only be used in a vehicle, but also in other objects, such as: the detection device and the sensing device can be arranged on or integrated with a ship, an airplane, a bicycle and the like so as to realize information transmission.

For example, the bicycle may be equipped with a detection device, or the detection device may be worn by a person driving the bicycle on the road. Accordingly, the road infrastructure (construction or hazardous structure) may be equipped with sensing arrangements. When the bicycle runs on the road, through detection device and sensing device, personnel on the bicycle can acquire road information, thereby improving driving safety. In this application, the data structure of the coded information backscattered by the sensing device may contain item type information. For example, at least one bitmap information in the data structure may be utilized to define the item category.

Fig. 3 is a schematic structural diagram of a sensing device 110 according to an embodiment of the present disclosure, and as shown in fig. 3, the sensing device 110 according to the embodiment of the present disclosure is disposed on a first object, and the sensing device 110 includes: a backscatter emission module 111 and a processing module 112.

Wherein the backscatter transmission module 111 is connected with the processing module 112.

The processing module 112 is configured to send the encoded information of the first object to the backscatter transmission module 111.

And a backscatter transmission module 111, configured to carry the encoded information on the detection signal sent by the detection apparatus 120 of the second object, and backscatter the encoded information to the detection apparatus 120.

The embodiment of the present application is not limited to the type of the first object, and the first object may be, for example, a vehicle, a ship, an airplane, or the like.

In the embodiment of the present application, the sensing device 110 may be installed at any position of the first object, which is not limited in the present application. For example, if the first object is a vehicle, the sensing device 110 may be mounted on the head, tail, front window, rear window, and the like of the vehicle.

In some embodiments, the sensing device 110 does not actively transmit information to the outside in a normal state, and only after receiving a detection signal from the outside, the backscatter transmitting module 111 in the sensing device 110 uses the detection signal as a carrier wave to backscatter the encoded information determined by the processing module 112 in the sensing device 110 to the detection device 120 that transmits the detection signal.

The embodiment of the present application does not limit when the processing module 112 generates the encoded information. In some embodiments, processing module 112 generates encoded information for the first object only after backscatter transmission module 111 receives the detection signal, and processing module 112 then sends the encoded information to backscatter transmission module 111. In other embodiments, each time the information related to the first object stored in the processing module 112 is updated, the processing module 112 updates the encoded information of the first object immediately, and sends the encoded information to the backscatter transmission module 111 after the backscatter transmission module 111 receives the detection signal.

Wherein the encoding information of the first object includes at least one of: the identification code of the first object, the form of the first object, and the position information of the sensing device 110, wherein the position information is used for indicating the setting position of the sensing device 110 on the first object.

It should be noted that, the embodiment of the present application is not limited to the type of the probe wave, and the probe signal may be a continuous wave signal with a single frequency or a continuously variable frequency signal. For example, if the detected information is a Continuous Wave (CW) with a single frequency, the sensing device 110 uses the wave as a carrier wave to perform backscatter coding.

The duration and duty cycle of the detection signal emitted by the detection device 120 depend on the specific application. For example, if the probe signal is a continuously variable frequency signal, the frequency of the probe signal transmitted during time t1-t2 may be continuously shifted from f1 to f2. The time points of t1 and t2 and the frequency values of f1 and f2 may be specifically set according to the actual situation.

In some embodiments, the sensing device 110 further comprises a transceiver antenna 113. As shown in fig. 3, the transceiver antenna 113 is connected to the backscatter transmission module 111. The transceiver antenna 113 is configured to transmit a received detection signal transmitted by the detection apparatus 120 to the backscatter transmission module 111, or backscatter encoded information sent by the backscatter transmission module 111 to the detection apparatus 120.

The embodiment of the present application does not limit the type of the transceiving antenna 113, and can be specifically set according to actual situations. In addition, the number of the transmitting/receiving antennas 113 of the sensing device 110 may be one, or may be plural, which is not limited in the embodiment of the present application.

The structure of the backscatter transmission module 111 in the sensing device 110 is explained below.

Fig. 4 is a schematic structural diagram of a backscatter transmission module 111 according to an embodiment of the present disclosure. As shown in fig. 4, the backscatter transmitting module 111 includes a transistor 1111.

The collector of the transistor 1111 is connected to the transceiver antenna 113, the base of the transistor 1111 is connected to the processing module 112, and the emitter of the transistor 1111 is grounded.

The transistor 1111 is used for backscattering the detection signal.

Illustratively, before the probing signal is received, the base of the transistor 1111 is in a high resistance state, the collector of the transistor 1111 is in a reverse bias state, and only a small current flows to the collector through the base and the emitter, respectively, while the transistor 1111 is in a steady state. When the detection signal arrives, the detection signal is a transient pulse and is transmitted to the base of the triode 1111. The base current switches from a negative value to a positive value so that the collector current increases sharply. When the collector current is increased to break down the triode 1111, a large instantaneous current is formed on the load and flows from bottom to top, so that nanosecond negative pulses are generated, and the backscatter of the detection signals can be realized.

In some embodiments, backscatter transmission module 111 further includes a tunnel diode 1112. The cathode of the tunnel diode 1112 is connected to the base of the transistor 1111, and the cathode of the tunnel diode 1112 is grounded. The tunnel diode 1112 is used to increase the backscatter gain of the backscatter transmission module 111.

In the present application, a radio frequency oscillator may be formed by the tunnel diode 1112, so that tunnel scattering may be achieved, and the backscatter gain of the backscatter transmission module 111 is improved.

Fig. 5 is a schematic structural diagram of another backscatter transmission module 111 according to an embodiment of the present application. As shown in fig. 5, the backscatter transmission module 111 includes a radio frequency switch 1113, and the radio frequency switch 1113 is used for backscattering the detection signal. In some embodiments, the rf switch 1113 may switch between "1" and "0" according to the control signal, thereby enabling the reception and backscatter of the detection signal. The embodiment of the application also does not limit the type and the connection mode of the radio frequency switch 1113, and can be reasonably set according to actual conditions.

The power supply method of the sensor device 110 will be described below.

In the present application, the sensing device 110 may be directly powered by the first object, may be provided with a power source, and may be further provided with a radio frequency energy harvesting module 117 for energy harvesting from the outside.

Fig. 3 shows a power supply mode in which the first object is directly supplied with power. Wherein the processing module 112 is connected to the control system 114 of the first object.

The control system 114 of the first object is used to power the sensing device 110.

In some embodiments, the control system 114 of the first object directly powers the processing module 112, and the backscatter transmission module 111 in the sensing device 110 obtains power via the processing module 112.

Fig. 6 is a schematic structural diagram of another sensing device 110 provided in the embodiment of the present application. Fig. 6 shows a power supply mode for collecting energy from the outside by the rf energy collecting module 117.

Wherein, the sensing device 110 further comprises: an rf receiving module 115, an energy management module 116, and an rf energy harvesting module 117.

The rf energy collection module 117 is connected to the rf receiving module 115 and the energy management module 116, respectively, and the energy management module 116 is connected to the backscatter transmission module 111 and the processing module 112, respectively. The rf receiving module 115 is configured to receive the rf signal transmitted by the detecting device 120 and transmit the rf signal to the rf energy collecting module 117. The rf energy harvesting module 117 is configured to convert energy of the rf signal into electric energy and transmit the electric energy to the energy management module 116. The energy management module 116 is used to power the backscatter transmission module 111 and the processing module 112.

In some embodiments, when communication is required, the detecting device 120 first transmits a radio frequency signal, and then the radio frequency signal is received by the radio frequency receiving module 115 in the sensing device 110. Subsequently, the rf energy harvesting module 117 in the sensing device 110 converts the energy of the rf signal into electric energy, and provides the converted electric energy to the energy management module 116, so that the energy management module 116 powers each module in the sensing device 110.

The sensing device provided by the embodiment of the application comprises a backscattering emission module and a processing module. The backscatter transmission module is connected to the processing module, and the processing module is configured to send the encoded information of the first object to the backscatter transmission module 111. And the backscatter transmission module is used for carrying the coded information on a detection signal sent by the detection device of the second object and backscattering the coded information to the detection device. Compared with the prior art, the encoding information of the first object can be accurately provided for the detection device through the backscattering technology, the influence of the external environment is avoided, and the accuracy of the acquired information can be improved.

On the basis of the above-described embodiment, the probe device 120 will be described below. Fig. 7 is a schematic structural diagram of a detection apparatus 120 according to an embodiment of the present disclosure, and as shown in fig. 7, the detection apparatus 120 according to the embodiment of the present disclosure is disposed on a second object, and the detection apparatus 120 includes: a transmitting module 121, a receiving module 122 and a modulation and demodulation module 123.

The transmitting module 121 is used for transmitting a detection signal to the sensing device 110 disposed on the first object.

The receiving module 122 is configured to receive the coded information that is backscattered by the sensing device 110 and uses the detection signal as a carrier, where the coded information is coded information of the first object.

The modem module 123 is configured to modulate the probe signal and demodulate the encoded information using the probe signal as a carrier.

The second object type is not limited in the embodiments of the present application, and the second object type may be, for example, a vehicle, a ship, an airplane, or the like. The first object and the second object are not the same object. For example, the first object and the second object are two vehicles traveling on the same road, respectively.

In the embodiment of the present application, the detecting device 120 may be installed at any position of the second object, which is not limited in this application. For example, if the second object is a vehicle, the detection device 120 may be installed at a head, a tail, a front window, and a rear window of the vehicle.

In some embodiments, when the second object wants to acquire the encoded information of the first object, the second object can transmit the detection information to the sensing device 110 of the first object through the detection device 120, the sensing device 110 of the first object uses the detection signal as a carrier wave, and the detection device 120 of the second object can demodulate the encoded information after the encoded information is backscattered to the detection device 120 which transmits the detection signal.

The detecting device 120 provided by the present application may further be connected to the control system 124 of the second object, and the detecting device 120 is controlled by the control signal sent by the control system 124 of the second object, and sends the collected encoded information of the first object to the control system 124 of the second object. In addition, the control system 124 of the second object may also power the detection device 120.

Furthermore, in some embodiments, the transmitting module 121 is further configured to transmit a radio frequency signal to the sensing device 110, and the radio frequency signal is used to power the sensing device 110.

The embodiment of the present application does not limit how the modulation and demodulation module 123 performs adjustment and demodulation, and may adopt a suitable modulation and demodulation manner.

It should be noted that the encoded information of the first object includes at least one of the following items: the identification code of the first object, the form of the first object, and the position information of the sensing device 110, wherein the position information is used for indicating the setting position of the sensing device 110 on the first object.

In addition, the embodiment of the present application is not limited to the type of the probe wave, and the probe signal may be a continuous wave signal with a single frequency or a continuously variable frequency signal.

Furthermore, in some embodiments, the detection device 120 further comprises: the transceiver antenna 125, the transceiver antenna 125 is respectively connected to the transmitting module 121 and the receiving module 122.

The transceiving antenna 125 is configured to transmit the received detection information transmitted by the transmitting module 121 to the sensing device 110, and transmit the received scattering code information backscattered by the sensing device 110 to the receiving module 122.

The type of the transceiving antenna 125 is not limited in the embodiment of the present application, and may be specifically set according to actual situations. In addition, the number of the transmitting/receiving antennas 125 of the detecting device 120 may be one, or may be multiple, which is not limited in the embodiment of the present application.

Fig. 8 is a schematic structural diagram of another detecting device 120 according to an embodiment of the present disclosure, and fig. 8 shows the detecting device 120 with a plurality of transmitting/receiving antennas 125.

The detecting device 120 includes a combiner 126. The combiner 126 is connected to the transmitting module 121, the receiving module 122, and the plurality of transceiving antennas 125, respectively.

The combiner 126 is configured to combine the coded information received by the multiple transceiving antennas 125 and using the probe signal as a carrier, and send the combined coded information to the receiving module 122, and transmit the probe signal sent by the transmitting module 121 to the multiple transceiving antennas 125.

In this embodiment, each transceiver antenna 125 may transmit a sounding signal in one frequency band. The combiner 126 may transmit the probe signal transmitted by the transmitting module 121 to the corresponding transceiving antenna 125 according to the frequency band of the probe signal.

In the present application, by using a multiple transmit receive antenna 125 aggregation mode, the transmit receive antenna 125 coverage area may be increased, thereby increasing the types of sensors that may be acquired by the detection device 120.

Fig. 9 is a schematic structural diagram of another detecting device 120 according to an embodiment of the present application, as shown in fig. 9, further including: a phase controller 127 and a processing module 128.

The phase controller 127 is connected to the transmitting module 121, the receiving module 122, and the processing module 128, respectively.

Processing module 128 is used to send a pulse signal to phase controller 127.

The phase controller 127 is configured to switch the transmitting module 121 and/or the receiving module 122 to be connected to one transceiving antenna 125 of the plurality of transceiving antennas 125 according to the phase of the pulse signal.

In the detection apparatus 120 according to the embodiment of the present application, the processing module 128 generates different pulse signals, and then the processing module 128 sends the pulse signals to the phase controller 127. After determining the phase of the pulse signal, the phase controller 127 switches the transmission module 121 and/or the reception module 122 to the transmission/reception antenna 125 corresponding to the phase according to the phase of the pulse signal.

The detection device 120 provided in the embodiment of the application, by setting the phase controller 127 and the processing module 128 in the detection device 120, can implement the transmission of the detection signal by the transceiving antennas 125 of a plurality of different frequency bands, thereby improving the coverage area of the transceiving antennas 125, and further increasing the types of sensors that can be obtained by the detection device 120.

Fig. 10 is a schematic diagram of a transceiver integrated module of a detection device 120 according to an embodiment of the present disclosure, and as shown in fig. 10, the detection device 120 includes an rf switch 129, a plurality of transmitting modules 121, and a plurality of receiving modules 122.

The rf switch 129 is connected to the plurality of transceiving antennas 125, the receiving module 122, and the transmitting module 121, respectively.

The rf switch 129 is configured to send the detection signal sent by the transmitting module 121 to the transceiver antenna 125 having a mapping relationship with the transmitting module 121, and send the encoded information received by the transceiver antenna 125 to the receiving module 122 having a mapping relationship with the transceiver antenna 125.

In the detecting device 120 provided in the embodiment of the present application, the mapping relationship between the transmitting/receiving antenna 125 and the transmitting module 121 and the mapping relationship between the transmitting/receiving antenna 125 and the receiving module 122 are stored in the radio frequency switch 129. When one of the transmitting modules 121 sends an rf signal to the rf switch, the rf switch 129 may determine the corresponding transmitting/receiving antenna 125 of the transmitting module 121. Then, the rf switch 129 transmits the rf signal to the corresponding transceiving antenna 125 of the transmitting module 121.

In the detection apparatus 120 provided in the embodiment of the present application, since the form of an integrated module of the transmitting module 121 and the receiving module 122 is adopted, and then the radio frequency switch 129 is used to map and match the transmitting module 121 and the receiving module 122 with the transceiving antenna 125, the transmission and the reception are more flexible.

Furthermore, in some embodiments, a plurality of detecting devices 120 on an object may share one modem module 123, and each detecting device 120 may be provided with a separate transmitter, receiver, combiner 126 and transceiving antenna 125.

The detection device provided by the embodiment of the application comprises a transmitting module, a receiving module and a modulation and demodulation module. The transmitting module is used for sending a detection signal to a sensing device arranged on the first object. The receiving module is used for receiving coded information which is backscattered by the sensing device and takes the detection signal as a carrier wave, and the coded information is coded information of the first object. The modulation and demodulation module is used for modulating the detection signal and demodulating the coded information taking the detection signal as a carrier. Compared with the existing sensing equipment, the encoding information of the first object can be accurately provided for the detection device through the backscattering technology, the influence of the external environment is avoided, and the accuracy of the acquired information can be improved.

Fig. 11 is a signaling interaction diagram of a communication method according to an embodiment of the present application, where the embodiment relates to a process of how a detection device obtains information from a sensing device, where the sensing device is disposed on a first object, and the detection device is disposed on a second object. As shown in fig. 11, the communication method includes:

s201, the detection device sends a detection signal to a sensing device arranged on the first object.

S202, the sensing device encodes the information of the first object to generate encoded information of the first object.

S203, the sensing device takes the detection signal as a carrier wave and backscatters the coded information to the detection device.

Wherein the encoded information of the first object comprises at least one of: the identification code of the first object, the form of the first object, and the position information of the sensing device 110, wherein the position information is used for indicating the setting position of the sensing device 110 on the first object.

The detection signal is a continuous wave signal or a continuous frequency conversion signal with a single frequency.

According to the communication method provided by the embodiment of the application, firstly, the detection device sends a detection signal to the sensing device arranged on the first object. Subsequently, the sensing device encodes the information of the first object, generating encoded information of the first object. Finally, the sensing device backscatters the encoded information to the detection device using the detection signal as a carrier. Compared with the existing sensing equipment, the encoding information of the first object can be accurately provided for the detection device through the backscattering technology, the influence of the external environment is avoided, and the accuracy of information acquisition can be improved.

Those of ordinary skill in the art will understand that: all or part of the steps for implementing the method embodiments may be implemented by hardware related to program information, the program may be stored in a computer readable storage medium, and the program executes the steps including the method embodiments when executed; and the aforementioned storage medium includes: various media that can store program codes, such as ROM, RAM, magnetic or optical disks.

Fig. 12 is a schematic structural diagram of a communication device according to an embodiment of the present application. The communication means may be implemented by software, hardware, or a combination of both to perform the above-described sensing means-side communication method. As shown in fig. 12, the communication apparatus 300 includes: a receiving module 301, a processing module 302 and a transmitting module 303.

A receiving module 301, configured to receive a probe signal sent by a probe device disposed on a second object;

the processing module 302 is configured to encode information of the first object to generate encoded information of the first object;

and a sending module 303, configured to backscatter the encoded information to the detecting device by using the detection signal as a carrier.

Fig. 13 is a schematic structural diagram of a communication device according to an embodiment of the present application. The communication means may be implemented by software, hardware, or a combination of both to perform the above-described communication method on the side of the detection means. As shown in fig. 13, the communication apparatus 400 includes: a sending module 401 and a receiving module 402.

A sending module 401, configured to send a probe signal to a sensing device disposed on a first object;

a receiving module 402, configured to receive encoded information of the first object backscattered by the sensing device and having the detection signal as a carrier.

The embodiment of the application also provides a vehicle, which comprises at least one sensing device and at least one detection device.

The embodiment of the application also provides a chip which comprises a processor and an interface. Wherein the interface is used for inputting and outputting data or instructions processed by the processor. The processor is adapted to perform the method provided in the above method embodiments. The chip can be applied to a sensing device or a detection device.

The present invention also provides a computer-readable storage medium, which may include: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, are specifically, the computer-readable storage medium stores program information, and the program information is used for the above communication method.

Embodiments of the present application also provide a program, which when executed by a processor, is configured to perform the communication method provided by the above method embodiments.

Embodiments of the present application further provide a program product, such as a computer-readable storage medium, having stored therein instructions, which, when executed on a computer, cause the computer to perform the communication method provided by the above method embodiments.

In the above embodiments, the implementation may be wholly or partially realized by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. The procedures or functions according to the embodiments of the invention may be carried out in whole or in part when the computer program instructions are loaded and executed on a computer. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored in a computer readable storage medium or transmitted from one computer readable storage medium to another, for example, the computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center via wired (e.g., coaxial cable, fiber optic, digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device, such as a server, a data center, etc., that includes one or more of the available media. The usable medium may be a magnetic medium (e.g., floppy Disk, hard Disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., solid State Disk (SSD)), among others.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims

A sensing device, wherein the sensing device is disposed on a first object, the sensing device comprising: the device comprises a backscattering emission module and a processing module;

the backscatter transmission module is connected with the processing module;

the processing module is used for sending the coded information of the first object to the backscatter transmitting module;

and the backscatter transmitting module is used for bearing the coded information on a detection signal sent by a detection device of a second object and backscattering the coded information to the detection device.
The sensing device of claim 1, further comprising: a transmit-receive antenna;

the receiving and transmitting antenna is used for transmitting the received detection signal transmitted by the detection device to the backscatter transmitting module; or backscattering the coded information sent by the backscattering emission module to the detection device.
The sensing device of claim 2, wherein the backscatter transmitting module comprises a triode;

the collector of the triode is connected with the transmitting and receiving antenna, the base of the triode is connected with the processing module, and the emitter of the triode is grounded;

the triode is used for carrying out backscattering on the detection signal.
The sensing device of claim 3, wherein the backscatter transmission module further comprises a tunnel diode;

the cathode of the tunnel diode is connected with the base electrode of the triode, and the cathode of the tunnel diode is grounded;

the tunnel diode is used for improving the backscattering gain of the backscattering emission module.
The sensing device of claim 1 or 2, wherein the backscatter transmission module comprises a radio frequency switch for backscattering the probe signal.
The sensing device of any one of claims 1-5, wherein the processing module is connected to a control system of the first object;

the control system of the first object is used for supplying power to the sensing device.
The sensing device of any one of claims 1-5, further comprising: the system comprises a radio frequency receiving module, an energy management module and a radio frequency energy collecting module;

the radio frequency energy collection module is respectively connected with the radio frequency receiving module and the energy management module, and the energy management module is respectively connected with the backscatter transmission module and the processing module;

the radio frequency receiving module is used for receiving the radio frequency signal sent by the detection device and sending the radio frequency signal to the radio frequency energy collecting module;

the radio frequency energy collection module is used for converting the energy of the radio frequency signal into electric energy and transmitting the electric energy to the energy management module;

the energy management module is used for supplying power to the backscatter transmission module and the processing module.
The sensing device of any one of claims 1-7, wherein the encoded information of the first object comprises at least one of: the identification code of the first object, the form of the first object and the position information of the sensing device, wherein the position information is used for indicating the setting position of the sensing device on the first object.
The sensing device of any one of claims 1-7, wherein the probing signal is a continuous wave signal or a continuously variable frequency signal at a single frequency.
A detection apparatus, characterized in that the detection apparatus is arranged on a second object, the detection apparatus comprising: the device comprises a transmitting module, a receiving module and a modulation and demodulation module;

the transmitting module is used for transmitting a detection signal to a sensing device arranged on a first object;

the receiving module is used for receiving the coded information of the first object which is backscattered by the sensing device and takes the detection signal as a carrier wave;

the modulation and demodulation module is used for modulating the detection signal and demodulating the coded information of the first object taking the detection signal as a carrier wave.
The probe apparatus of claim 10, further comprising: a transmit-receive antenna;

the receiving and transmitting antenna is respectively connected with the transmitting module and the receiving module;

the receiving and transmitting antenna is used for sending the received detection information sent by the transmitting module to the sensing device and sending the received coded information backscattered by the sensing device to the receiving module.
The probe apparatus of claim 11, further comprising: a combiner;

the combiner is respectively connected with the transmitting module, the receiving module and the plurality of transceiving antennas;

the combiner is configured to combine the coding information of the first object that is received by the multiple transceiver antennas and uses the probe signal as a carrier, and then send the combined coding information to the receiving module, and transmit the probe signal sent by the transmitting module to the multiple transceiver antennas.
The probe apparatus of claim 11, further comprising: a phase controller and a processing module;

the phase controller is respectively connected with the transmitting module, the receiving module and the processing module;

the processing module is used for sending a pulse signal to the phase controller;

the phase controller is used for switching the transmitting module and/or the receiving module to be connected with one of the plurality of transceiving antennas according to the phase of the pulse signal.
The probe apparatus of claim 11, further comprising: a radio frequency switch;

the radio frequency switch is respectively connected with a plurality of receiving and transmitting antennas, the receiving module and the transmitting module;

the radio frequency switch is used for sending the detection signal sent by the transmitting module to a transmitting and receiving antenna which has a mapping relation with the transmitting module, and sending the coding information received by the transmitting and receiving antenna to a receiving module which has a mapping relation with the transmitting and receiving antenna.
A detection device according to any of claims 10-14, wherein the transmission module is further configured to transmit a radio frequency signal to the sensing device, the radio frequency signal being configured to power the sensing device.
The detection apparatus according to any one of claims 10-15, wherein the encoded information of the first object comprises at least one of: the method comprises the steps of identifying the identification code of the first object, the form of the first object and position information of the sensing device, wherein the position information is used for indicating the setting position of the sensing device on the first object.
A probe device according to any of claims 10 to 15 wherein the probe signal is a continuous wave signal or a continuously variable frequency signal of a single frequency.
A communication method applied to a sensing apparatus provided on a first object, comprising:

receiving a detection signal sent by a detection device arranged on a second object;

encoding the information of the first object to generate encoded information of the first object;

and using the detection signal as a carrier wave to backscatter the coded information to the detection device.
A communication method applied to a probe apparatus provided on a second object, comprising:

transmitting a detection signal to a sensing device provided on a first object;

and receiving the coded information of the first object which is backscattered by the sensing device and takes the detection signal as a carrier wave.
A vehicle, characterized by comprising: at least one sensing device according to any one of claims 1-9 and at least one detection device according to any one of claims 10-17.