Interference detection device and vehicle detection device

Abstract

The utility model relates to the technical field of vehicle detection, in particular to interference detection equipment and vehicle detection equipment. A plurality of to-be-tested components are arranged in an isolation room, the electromagnetic intensity of the to-be-tested components and the surrounding is received through signal transceivers connected with the plurality of to-be-tested components, different to-be-tested components are each provided with a signal transceiver so that the electromagnetic intensity of the different to-be-tested components can be collected, and the receiving end of an antenna is in communication connection with the signal transceivers so that the electromagnetic intensity of the different to-be-tested components can be collected. The transmitting ends of the antennas are electrically connected with the frequency conversion module, the antennas correspond to the signal transceivers one by one so that field intensity information of electromagnetic intensity of the signal transmitters can be received in corresponding frequency bands, the field intensity information is subjected to frequency conversion processing through the frequency conversion module and then transmitted to the main control chip, and the interference intensity is detected through the main control chip. Therefore, due to the fact that different antennas correspond to different frequency bands, electromagnetic intensity of different components to be detected can be collected, and interference detection of the different components to be detected can be achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle detection, and particularly relates to an interference detection device and a vehicle detection device. Background Art

[0002] With the development of the automotive industry, the safety, reliability and intelligent level of vehicles are increasing day by day, and the wireless functions of vehicles are becoming more and more perfect. However, as the number of electronic devices in vehicles gradually increases, electromagnetic interference such as motors and high currents becomes more and more intense. Therefore, it is crucial to judge the electromagnetic interference at this position during the R & D process. Summary of the Utility Model

[0003] The purpose of this application is to provide an interference detection device and a vehicle detection device.

[0004] This application provides an interference detection device, including: an isolation chamber, which houses a plurality of components to be tested; a plurality of signal transceivers, which are used to connect a plurality of components to be tested, and the signal transceivers correspond to the components to be tested one by one; a detector, which includes a collection device and a main control chip. The collection device includes an antenna and a frequency conversion module. A plurality of antennas are provided, the receiving end of the antenna is communicatively connected to the signal transceiver, the transmitting end of the antenna is electrically connected to the frequency conversion module, the antenna corresponds to the signal transceiver one by one, the frequency conversion module is electrically connected to the main control chip, the antenna is used to receive the field strength information of the corresponding frequency band, the frequency conversion module is used to perform frequency conversion processing on the field strength information of the antenna, and the main control chip is used to receive the field strength information of the frequency conversion module and detect the interference intensity.

[0005] In an exemplary embodiment of this application, the interference detection device further includes a wireless chip and a single-pole double-throw switch. The receiving end of the single-pole double-throw switch is connected to the antenna, the transmitting end of the single-pole double-throw switch is connected to the wireless chip and the frequency conversion module. When the single-pole double-throw switch is connected to the frequency conversion module, it can transmit the frequency of the antenna to the frequency conversion module. When the single-pole double-throw switch is connected to the wireless chip, it can realize the signal interaction between the component to be tested and the outside world.

[0006] In an exemplary embodiment of this application, the components to be tested include a vehicle radio, vehicle WIFI, vehicle Bluetooth, an in-vehicle infotainment system of the vehicle, and a remote control door lock. The signal transceivers respectively receive the frequency signals and field strength information of the vehicle radio, vehicle WIFI, vehicle Bluetooth, the in-vehicle infotainment system of the vehicle, and the remote control door lock, and the antenna collects the field strength information of the corresponding component to be tested within the corresponding frequency band.

[0007] In an exemplary embodiment of the present application, the frequency band received by the antenna corresponding to the vehicle radio is 88 MHz - 107 MHz; the vehicle WIFI includes 2.4G WIFI and 5G WIFI. The frequency band received by the antenna corresponding to the 2.4G WIFI is 2400 MHz - 2483.5 MHz, and the frequency band received by the antenna corresponding to the 5G WIFI is 5 GHz - 6 GHz; the frequency band received by the antenna corresponding to the vehicle Bluetooth is 2400 MHz - 2483.5 MHz; the in-vehicle infotainment system of the vehicle includes an LTE network in-vehicle infotainment system and an NR network in-vehicle infotainment system. The LTE network in-vehicle infotainment system includes a 4G LTE network in-vehicle infotainment system and a 5G LTE network in-vehicle infotainment system. The frequency band received by the antenna corresponding to the 4G LTE network in-vehicle infotainment system is 700 MHz - 960 MHz; the frequency band received by the antenna corresponding to the 5G LTE network in-vehicle infotainment system is 1710 MHz - 2500 MHz; the frequency band received by the antenna corresponding to the NR network in-vehicle infotainment system is 3300 MHz - 5000 MHz; the frequency band received by the antenna corresponding to the remote control door lock is 428.92 MHz - 438.92 MHz.

[0008] In an exemplary embodiment of the present application, the main control chip is provided with a threshold range corresponding to multiple components to be measured, and the field strength information of the frequency conversion module is compared with the threshold range to detect the interference intensity; the threshold range corresponding to the vehicle radio is greater than or equal to -90 dBm; the threshold range corresponding to the 2.4G WIFI is greater than or equal to -87 dBm; the threshold range corresponding to the 5G WIFI is greater than or equal to -87 dBm; the threshold range corresponding to the vehicle Bluetooth is greater than or equal to -65 dBm; the threshold range corresponding to the 4G LTE network in-vehicle infotainment system is greater than or equal to -80 dBm; the threshold range corresponding to the 5G LTE network in-vehicle infotainment system is greater than or equal to -80 dBm; the threshold range corresponding to the NR network in-vehicle infotainment system is greater than or equal to -80 dBm; the threshold range corresponding to the remote control door lock is greater than or equal to -85 dBm.

[0009] In an exemplary embodiment of the present application, the interference detection device further includes a noise amplifier, which is arranged between the frequency conversion module and the antenna and is used to amplify the noise of the antenna field strength information.

[0010] In an exemplary embodiment of the present application, the interference detection device further includes an analog-to-digital converter, which is arranged between the frequency conversion module and the main control chip and is used to convert the analog signal of the frequency conversion module into a digital signal and transmit it to the main control chip.

[0011] In an exemplary embodiment of the present application, the frequency conversion module includes a local oscillator, a mixer, an intermediate frequency amplifier, a detector, and a low-frequency amplifier. Through the cooperation of the local oscillator, the mixer, the intermediate frequency amplifier, the detector, and the low-frequency amplifier, the high-frequency field strength information is converted into low-frequency field strength information.

[0012] In an exemplary embodiment of the present application, the interference detection device further includes a filter, which is disposed between the antenna and the single-pole double-throw switch to effectively filter out frequencies outside the corresponding frequency band of the antenna.

[0013] The present application also provides a vehicle detection device, including the interference detection device described above.

[0014] An interference detection device and a vehicle detection device according to the solution of the present application have the following beneficial effects: A plurality of components to be measured are placed in an isolation room, and the electromagnetic intensity of the components to be measured and the surrounding area is received through a signal transceiver connected to the plurality of components to be measured. A signal transceiver is provided for each different component to be measured, so as to be able to collect the electromagnetic intensity of different components to be measured. The receiving end of the antenna is communicatively connected to the signal transceiver, and the transmitting end of the antenna is electrically connected to the frequency conversion module. The antennas and the signal transceivers are in one-to-one correspondence, so as to be able to receive the field strength information of the electromagnetic intensity of the signal transmitter in the corresponding frequency band, and then the field strength information is subjected to frequency conversion processing by the frequency conversion module and transmitted to the main control chip, and the interference intensity is detected by the main control chip. Thus, since different antennas correspond to different frequency bands, it is possible to collect the electromagnetic intensity of different components to be measured, and thus it is also possible to detect the interference of different components to be measured.

[0015] Other features and advantages of the present application will become apparent from the following detailed description, or will be partially learned through the practice of the present application.

[0016] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings herein are incorporated into the specification and constitute a part of the specification, showing embodiments consistent with the present application, and are used together with the specification to explain the principles of the present application. Obviously, the accompanying drawings in the following description are only some embodiments of the present application, and those of ordinary skill in the art can obtain other drawings based on these drawings without creative efforts.

[0018] Figure 1 is a schematic structural diagram of an interference detection device in an embodiment of the present invention;

[0019] Figure 2 is a schematic structural diagram of a detector in an embodiment of the present invention.

[0020] Description of Reference Numerals

[0021] 10. Isolation room; 11. Component to be measured; 20. Signal transceiver; 30. Detector; 31. Acquisition device; 311. Antenna; 312. Frequency conversion module; 3121. Local oscillator; 3122. Mixer; 3123. Intermediate frequency amplifier; 3124. Detector; 3125. Low frequency amplifier; 32. Main control chip; 40. Wireless chip; 50. Single-pole double-throw switch; 60. Noise amplifier; 70. Analog-to-digital converter; 80. Filter. Detailed Implementation Modes

[0022] Example embodiments will now be described more fully with reference to the accompanying drawings. However, the example embodiments can be implemented in various forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this application will be more complete and comprehensive, and will fully convey the concept of the example embodiments to those skilled in the art.

[0023] In addition, the described features, structures, or characteristics can be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of the embodiments of this application. However, those skilled in the art will realize that the technical solutions of this application can be practiced without one or more of the specific details, or other methods, components, devices, steps, etc. can be adopted. In other cases, well-known methods, devices, implementations, or operations are not shown or described in detail to avoid obscuring aspects of this application.

[0024] The present application will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted here that the technical features involved in the various embodiments of the present application described below can be combined with each other as long as they do not conflict with each other. The embodiments described below by referring to the accompanying drawings are exemplary and are intended to explain the present application and should not be construed as limiting the present application.

[0025] It should be noted that: "a plurality of" as mentioned herein refers to two or more. "And / or" describes the association relationship of associated objects and indicates that three relationships can exist. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. The character " / " generally represents an "or" relationship between the associated objects before and after.

[0026] With the development of the automotive industry, the safety, reliability, and intelligent level of vehicles have been increasing day by day, and the wireless functions of vehicles have become more and more perfect. However, as the number of electronic devices in vehicles gradually increases, electromagnetic interference such as motors and high currents has become more and more intense. Therefore, it is crucial to judge the electromagnetic interference at this position during the R & D process.

[0027] To solve the above technical problems, referring to Figure 1 As shown, the present application provides an interference detection device, including an isolation chamber 10, a signal transceiver 20, and a detector 30. The isolation chamber 10 houses a plurality of components to be tested 11; there are a plurality of signal transceivers 20, and the plurality of signal transceivers 20 are used to connect the plurality of components to be tested 11, and the signal transceivers 20 correspond to the components to be tested 11 one by one; the detector 30 includes a collection device 31 and a main control chip 32. The collection device 31 includes an antenna 311 and a frequency conversion module 312. A plurality of antennas 311 are provided. The receiving end of the antenna 311 is communicatively connected to the signal transceiver 20, and the transmitting end of the antenna 311 is electrically connected to the frequency conversion module 312. The antennas 311 correspond to the signal transceivers 20 one by one. The frequency conversion module 312 is electrically connected to the main control chip 32. The antenna 311 is used to receive the field strength information of the corresponding frequency band, the frequency conversion module 312 is used to perform frequency conversion processing on the field strength information of the antenna 311, and the main control chip 32 is used to receive the field strength information of the frequency conversion module 312 and detect the interference intensity.

[0028] Place the plurality of components to be tested 11 in the isolation chamber 10. The signal transceivers 20 connected to the plurality of components to be tested 11 receive the electromagnetic intensity of the components to be tested 11 and the surroundings. Each of the different components to be tested 11 is provided with a signal transceiver 20 to be able to collect the electromagnetic intensity of different components to be tested 11. The receiving end of the antenna 311 is communicatively connected to the signal transceiver 20, and the transmitting end of the antenna 311 is electrically connected to the frequency conversion module 312. The antennas 311 correspond to the signal transceivers 20 one by one, so as to be able to receive the field strength information of the electromagnetic intensity of the signal transmitter in the corresponding frequency band, and then the frequency conversion module 312 performs frequency conversion processing on the field strength information and transmits it to the main control chip 32, and the main control chip 32 detects the interference intensity. Thus, since different antennas 311 correspond to different frequency bands, it is possible to collect the electromagnetic intensity of different components to be tested 11, and thus it is also possible to detect the interference of different components to be tested 11.

[0029] In some embodiments, referring to Figure 1 As shown, the interference detection device further includes a wireless chip 40 and a single-pole double-throw switch 50. The receiving end of the single-pole double-throw switch 50 is connected to the antenna 311, and the transmitting end of the single-pole double-throw switch 50 is connected to the wireless chip 40 and the frequency conversion module 312. The single-pole double-throw switch 50 connected to the frequency conversion module 312 can transmit the frequency of the antenna 311 to the frequency conversion module 312, and the single-pole double-throw switch 50 connected to the wireless chip 40 can realize the signal interaction between the component to be tested 11 and the outside. Thus, the single-pole double-throw switch 50 can realize the switching of two channels. One channel is provided with a collection device 31 and a main control chip 32 as the detection channel, and the other channel is provided with a wireless chip 40 as the communication channel, which can respectively and simultaneously meet the detection of the component to be tested 11 and the signal interaction between the component to be tested 11 and the outside.

[0030] In some embodiments, referring to Figure 1 as shown, the component 11 to be measured includes a vehicle radio, vehicle WIFI, vehicle Bluetooth, the vehicle infotainment system, and a remote control door lock. The signal transceiver 20 respectively receives the frequency signals and field strength information of the vehicle radio, vehicle WIFI, vehicle Bluetooth, the vehicle infotainment system, and the remote control door lock. The antenna 311 collects the field strength information of the corresponding component 11 to be measured within the corresponding frequency band. The vehicle radio, vehicle WIFI, vehicle Bluetooth, the vehicle infotainment system, and the remote control door lock are provided on the vehicle body according to actual requirements. Here, Figure 1 three of the components to be measured are schematically shown, which can respectively represent any three of the vehicle radio, vehicle WIFI, vehicle Bluetooth, the vehicle infotainment system, and the remote control door lock. The vehicle is directly placed in the isolation chamber 10, so that the component 11 to be measured of the vehicle is placed in the isolation chamber 10. All other functions in the vehicle except the wireless function are turned on. When detecting, the single-pole double-throw switch 50 is controlled to switch to the detection channel, and scanning is performed step by step according to different wireless systems. The field strength information received at each frequency point is transmitted to the main control chip 32 via the antenna 311 and the frequency conversion module 312.

[0031] In some embodiments, the frequency band received by the antenna 311 corresponding to the vehicle radio is 88 MHz - 107 MHz. The antenna 311 can collect the field strength information of the vehicle radio within the frequency band of 88 MHz - 107 MHz. Then, when the radio is working, the emitted frequency band is 88 MHz - 107 MHz, which can be collected by the antenna 311. The corresponding power value can be obtained according to the specifically collected field strength information, and then the signal interference intensity can be judged by the main control chip 32.

[0032] In some embodiments, the vehicle WIFI includes 2.4G WIFI and 5G WIFI. The frequency band received by the antenna 311 corresponding to the 2.4G WIFI is 2400 MHz - 2483.5 MHz, and the frequency band received by the antenna 311 corresponding to the 5G WIFI is 5 GHz - 6 GHz. The antenna 311 can collect the field strength information of the 2.4G WIFI within the frequency band of 2400 MHz - 2483.5 MHz. Then, when the 2.4G WIFI is working, the emitted frequency band is 2400 MHz - 2483.5 MHz, which can be collected by the antenna 311. The corresponding power value can be obtained according to the specifically collected field strength information, and then the signal interference intensity can be judged by the main control chip 32. The antenna 311 can collect the field strength information of the 5G WIFI within the frequency band of 5 GHz - 6 GHz. Then, when the 5G WIFI is working, the emitted frequency band is 5 GHz - 6 GHz, which can be collected by the antenna 311. The corresponding power value can be obtained according to the specifically collected field strength information, and then the signal interference intensity can be judged by the main control chip 32.

[0033] In some embodiments, the frequency band received by the antenna 311 corresponding to the vehicle Bluetooth is 2400 MHz - 2483.5 MHz; the antenna 311 can collect the field strength information of the vehicle Bluetooth within the frequency band of 2400 MHz - 2483.5 MHz. Then, when the vehicle Bluetooth works, the emitted frequency band is 2400 MHz - 2483.5 MHz, which can be collected by the antenna 311. The corresponding power value can be obtained according to the specifically collected field strength information, and then the signal interference intensity can be judged by the main control chip 32.

[0034] In some embodiments, the in-vehicle infotainment system of the vehicle includes an LTE network in-vehicle infotainment system and an NR network in-vehicle infotainment system. The LTE network in-vehicle infotainment system includes a 4G LTE network in-vehicle infotainment system and a 5G LTE network in-vehicle infotainment system. The frequency band received by the antenna 311 corresponding to the 4G LTE network in-vehicle infotainment system is 700 MHz - 960 MHz; the antenna 311 can collect the field strength information of the 4G LTE network in-vehicle infotainment system within the frequency band of 700 MHz - 960 MHz. Then, when the 4G LTE network in-vehicle infotainment system works, the emitted frequency band is 700 MHz - 960 MHz, which can be collected by the antenna 311. The corresponding power value can be obtained according to the specifically collected field strength information, and then the signal interference intensity can be judged by the main control chip 32. The frequency band received by the antenna 311 corresponding to the 5G LTE network in-vehicle infotainment system is 1710 MHz - 2500 MHz; the antenna 311 can collect the field strength information of the 5G LTE network in-vehicle infotainment system within the frequency band of 1710 MHz - 2500 MHz. Then, when the 5G LTE network in-vehicle infotainment system works, the emitted frequency band is 1710 MHz - 2500 MHz, which can be collected by the antenna 311. The corresponding power value can be obtained according to the specifically collected field strength information, and then the signal interference intensity can be judged by the main control chip 32. The frequency band received by the antenna 311 corresponding to the NR network in-vehicle infotainment system is 3300 MHz - 5000 MHz; the antenna 311 can collect the field strength information of the NR network in-vehicle infotainment system within the frequency band of 3300 MHz - 5000 MHz. Then, when the NR network in-vehicle infotainment system works, the emitted frequency band is 3300 MHz - 5000 MHz, which can be collected by the antenna 311. The corresponding power value can be obtained according to the specifically collected field strength information, and then the signal interference intensity can be judged by the main control chip 32.

[0035] In some embodiments, the frequency band received by the antenna 311 corresponding to the remote control door lock is 428.92 MHz - 438.92 MHz. The antenna 311 can collect the field strength information of the remote control door lock within the frequency band of 428.92 MHz - 438.92 MHz. Then, when the remote control door lock works, the emitted frequency band is 428.92 MHz - 438.92 MHz, which can be collected by the antenna 311. The corresponding power value can be obtained according to the specifically collected field strength information, and then the signal interference intensity can be judged by the main control chip 32.

[0036] In some embodiments, the main control chip 32 is provided with threshold ranges corresponding to a plurality of components to be tested 11, and the field strength information of the frequency conversion module 312 is compared with the threshold ranges to detect the interference intensity; that is, the power value is compared with the threshold ranges. The corresponding threshold ranges are also a power value. If it is greater than the threshold range, it indicates that the component to be tested 11 is affected by electromagnetic interference. The specific interference intensity can also be judged by the difference between the power value and the threshold range, that is, the greater the difference, the greater the interference intensity. Specifically, the threshold range corresponding to the vehicle radio is greater than or equal to -90 dBm; the threshold range corresponding to 2.4G WIFI is greater than or equal to -87 dBm; the threshold range corresponding to 5G WIFI is greater than or equal to -87 dBm; the threshold range corresponding to the vehicle Bluetooth is greater than or equal to -65 dBm; the threshold range corresponding to the 4G LTE network vehicle infotainment system is greater than or equal to -80 dBm; the threshold range corresponding to the 5G LTE network vehicle infotainment system is greater than or equal to -80 dBm; the threshold range corresponding to the NR network vehicle infotainment system is greater than or equal to -80 dBm; the threshold range corresponding to the remote control door lock is greater than or equal to -85 dBm.

[0037] In some embodiments, referring to Figure 2 As shown, the interference detection device further includes a noise amplifier 60. The noise amplifier 60 is arranged between the frequency conversion module 312 and the antenna 311 and is used to amplify the noise of the field strength information of the antenna 311. The amplified noise is convenient for subsequent filtering.

[0038] In some embodiments, referring to Figure 2 As shown, the interference detection device further includes an analog-to-digital converter 70. The analog-to-digital converter 70 is arranged between the frequency conversion module 312 and the main control chip 32 and is used to convert the analog signal of the frequency conversion module 312 into a digital signal and transmit it to the main control chip 32. The digital signal can be stored and processed by the main control chip 32.

[0039] In some embodiments, referring to Figure 2As shown in the figure, the frequency conversion module 312 includes a local oscillator 3121, a mixer 3122, an intermediate frequency amplifier 3123, a detector 3124, and a low-frequency amplifier 3125. Through the cooperation of the local oscillator 3121, the mixer 3122, the intermediate frequency amplifier 3123, the detector 3124, and the low-frequency amplifier 3125, the high-frequency field strength information is converted into low-frequency field strength information. The local oscillator 3121 is a self-excited sine wave oscillator. Its function is to generate a high-frequency equal-amplitude sine wave signal that is one intermediate frequency higher than the received signal, and inject this oscillation signal into the mixer 3122 to obtain an intermediate frequency signal after mixing with the high-frequency TV signal. The mixer 3122 is a circuit whose output signal frequency is equal to the sum, difference, or other combinations of the two input signal frequencies. The intermediate frequency amplifier 3123, the intermediate frequency amplifier 3123 is a type of power amplifier and also has the function of frequency selection, that is, the power gain for a specific frequency band is higher than the gain for other frequency bands. The detector 3124 is a device that detects certain useful information in a fluctuating signal. A device used to identify the presence or change of a wave, oscillation, or signal. The low-frequency amplifier 3125 appropriately amplifies the low-frequency signal and then transmits it to the analog-to-digital converter 70.

[0040] In some embodiments, with reference to Figure 2 As shown in the figure, the interference detection device further includes a filter 80. The filter 80 is disposed between the antenna 311 and the single-pole double-throw switch 50 to effectively filter out frequencies outside the frequency band corresponding to the antenna 311. The filter 80 is a filter circuit composed of capacitors, inductors, and resistors. The filter 80 can effectively filter out a specific frequency point in the power supply line or frequencies outside this frequency point to obtain a power supply signal with a specific frequency, or eliminate the power supply signal after a specific frequency.

[0041] This application also provides a vehicle detection device, including the above-mentioned interference detection device. In this application, unless otherwise clearly specified and limited, terms such as "set (provided with)", "connected", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal connection of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0042] In the description of this specification, the description referring to terms such as "some embodiments" means that the specific features, structures, materials or characteristics described in connection with the embodiment are included in at least one embodiment of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0043] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present application. Those of ordinary skill in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present application. Therefore, any changes or modifications made in accordance with the claims and the description of the present application shall fall within the scope covered by the patent of the present application.

Claims

1. An interference detection device, characterized in that, Including: Isolation room, which houses a plurality of components to be tested; Signal transceivers, there are a plurality of the signal transceivers, and the plurality of signal transceivers are used to connect a plurality of components to be tested, and the signal transceivers correspond to the components to be tested one by one; Detector, the detector includes a collection device and a main control chip, the collection device includes an antenna and a frequency conversion module, a plurality of antennas are provided, the receiving end of the antenna is communicatively connected to the signal transceiver, the transmitting end of the antenna is electrically connected to the frequency conversion module, the antenna corresponds to the signal transceiver one by one, the frequency conversion module is electrically connected to the main control chip, the antenna is used to receive the field strength information of the corresponding frequency band, the frequency conversion module is used to perform frequency conversion processing on the field strength information of the antenna, and the main control chip is used to receive the field strength information of the frequency conversion module and detect the interference intensity.

2. The interference detection device according to claim 1, wherein The interference detection device further includes a wireless chip and a single-pole double-throw switch, the receiving end of the single-pole double-throw switch is connected to the antenna, the transmitting end of the single-pole double-throw switch is connected to the wireless chip and the frequency conversion module, the single-pole double-throw switch connected to the frequency conversion module can transmit the frequency of the antenna to the frequency conversion module, and the single-pole double-throw switch connected to the wireless chip can realize signal interaction between the component to be tested and the outside world.

3. The interference detection device according to claim 1, characterized in that, The components to be tested include a vehicle radio, vehicle WIFI, vehicle Bluetooth, the vehicle's in-vehicle infotainment system, and a remote control door lock. The signal transceivers respectively receive the frequency signals and field strength information of the vehicle radio, vehicle WIFI, vehicle Bluetooth, the vehicle's in-vehicle infotainment system, and the remote control door lock, and the antenna collects the field strength information of the corresponding component to be tested within the corresponding frequency band.

4. The interference detection device according to claim 3, wherein The frequency band received by the antenna corresponding to the vehicle radio is 88 MHz - 107 MHz; The vehicle WIFI includes 2.4G WIFI and 5G WIFI. The frequency band received by the antenna corresponding to the 2.4G WIFI is 2400 MHz - 2483.5 MHz, and the frequency band received by the antenna corresponding to the 5G WIFI is 5 GHz - 6 GHz; The frequency band received by the antenna corresponding to the vehicle Bluetooth is 2400 MHz - 2483.5 MHz; The vehicle's in-vehicle infotainment system includes an LTE network in-vehicle infotainment system and an NR network in-vehicle infotainment system. The LTE network in-vehicle infotainment system includes a 4G LTE network in-vehicle infotainment system and a 5G LTE network in-vehicle infotainment system. The frequency band received by the antenna corresponding to the 4G LTE network in-vehicle infotainment system is 700 MHz - 960 MHz; The frequency band received by the antenna corresponding to the 5G LTE network in-vehicle infotainment system is 1710 MHz - 2500 MHz; the frequency band received by the antenna corresponding to the NR network in-vehicle infotainment system is 3300 MHz - 5000 MHz; The frequency band received by the antenna corresponding to the remote control door lock is 428.92 MHz - 438.92 MHz.

5. The interference detection device according to claim 4, characterized in that, The main control chip is provided with threshold ranges corresponding to a plurality of components to be measured, and the field strength information of the frequency conversion module is compared with the threshold ranges to detect the interference intensity; The threshold range corresponding to the vehicle radio is greater than or equal to -90 dBm; The threshold range corresponding to the 2.4G WIFI is greater than or equal to -87 dBm; The threshold range corresponding to the 5G WIFI is greater than or equal to -87 dBm; The threshold range corresponding to the vehicle Bluetooth is greater than or equal to -65 dBm; The threshold range corresponding to the in-vehicle infotainment system of the 4G LTE network is greater than or equal to -80 dBm; The threshold range corresponding to the in-vehicle infotainment system of the 5G LTE network is greater than or equal to -80 dBm; The threshold range corresponding to the in-vehicle infotainment system of the NR network is greater than or equal to -80 dBm; The threshold range corresponding to the remote control door lock is greater than or equal to -85 dBm.

6. The interference detection device according to claim 1, wherein The interference detection device further includes a noise amplifier, which is arranged between the frequency conversion module and the antenna and is used to amplify the noise of the antenna field strength information.

7. The interference detection device according to claim 6, characterized in that, The interference detection device further includes an analog-to-digital converter, which is arranged between the frequency conversion module and the main control chip and is used to convert the analog signal of the frequency conversion module into a digital signal and transmit it to the main control chip.

8. The interference detection device according to claim 1, wherein The frequency conversion module includes a local oscillator, a mixer, an intermediate frequency amplifier, a detector, and a low frequency amplifier, and the high-frequency field strength information is frequency-converted into low-frequency field strength information through the cooperation of the local oscillator, the mixer, the intermediate frequency amplifier, the detector, and the low frequency amplifier.

9. The interference detection device according to claim 2, characterized in that, The interference detection device further includes a filter, which is arranged between the antenna and the single-pole double-throw switch and effectively filters out the frequencies outside the frequency band corresponding to the antenna.

10. A vehicle detection device, characterized in that, Comprising the interference detection device according to any one of claims 1 to 9.

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