Equipment operation state detection method, truck, electronic equipment and storage medium

Abstract

The embodiment of the invention relates to the technical field of railway detection equipment, in particular to an equipment operation state detection method, a wagon, electronic equipment and a storage medium, and the method comprises the following steps: responding to a target wagon entering a detection area where the equipment is located, and utilizing a detection device arranged on the target wagon to detect the operation state of the equipment; acquiring an antenna field intensity value and an antenna frequency value in the working range of the equipment in real time; determining whether the radio frequency performance index of the equipment meets a preset detection standard or not according to the change conditions of the antenna field intensity value and the antenna frequency value; and when the radio frequency performance index of the equipment meets a preset detection standard, determining that the antenna of the equipment operates normally. The equipment operation state detection method disclosed by the invention is not influenced by a skylight plan and does not need to manually hold the electronic tag for manual measurement, so that the detection efficiency is greatly improved, the antenna field intensity value and the antenna frequency value within the equipment working range can be acquired in real time, and the data updating is timely and high in accuracy.

Description

Technical Field

[0001] The embodiments of the present invention relate to the technical field of railway detection equipment, and in particular to a method for detecting the operating status of equipment, a freight car, an electronic device and a storage medium. Background Art

[0002] Railway vehicle number automatic recognition equipment has been widely used in the field of railway transportation. The vehicle number automatic recognition equipment can quickly and accurately identify the vehicle number of the vehicle passing on the line, thereby obtaining vehicle information, and plays an important role in the transportation organization process. At the same time, the currently used railway 5T detection equipment needs to use the vehicle number automatic recognition equipment to obtain vehicle information, so as to accurately locate the faulty vehicle. Therefore, it is necessary to ensure that the vehicle number automatic recognition equipment operates normally and stably, which requires regular inspection of the equipment's operating status.

[0003] At present, the operation status inspection of automatic vehicle number recognition equipment mostly relies on manual online inspection. Manual online inspection is generally carried out by operators holding the vehicle-mounted passive electronic tag and moving the passive electronic tag above the ground antenna to manually measure the reading distance to determine the working status of the equipment antenna. Due to the large number of vehicle number recognition equipment currently in stock, manual online operations also need to be carried out under the condition of a skylight plan, which greatly affects the operation efficiency and it is difficult to achieve full coverage inspection of automatic vehicle number recognition equipment. Summary of the invention

[0004] The purpose of the present invention is to at least provide a method for detecting the operating status of an equipment, a truck, an electronic device and a storage medium, which can at least solve the technical problem that manual online inspection needs to be carried out under a skylight plan, which greatly affects the operating efficiency and it is difficult to achieve full coverage inspection of the automatic vehicle number recognition equipment. At least it can achieve the effect of not being affected by the skylight plan, and can follow the normal movement of the train for inspection, so as to achieve a more efficient inspection effect.

[0005] To solve the above technical problems, at least one embodiment of the present application provides a method for detecting the operating status of a device, comprising:

[0006] In response to a target truck entering a detection area where the device is located, using a detection device disposed on the target truck to obtain in real time an antenna field strength value and an antenna frequency value within a working range of the device;

[0007] Determining whether the radio frequency performance index of the device meets a preset detection standard according to changes in the antenna field strength value and the antenna frequency value;

[0008] When the radio frequency performance index of the device meets the preset detection standard, it is determined that the device antenna operates normally.

[0009] At least one embodiment of the present application further provides a device for detecting a running state of a device, comprising:

[0010] A radio frequency parameter acquisition module, for obtaining, in response to a target truck entering a detection area where the device is located, a real-time antenna field strength value and an antenna frequency value within a working range of the device using a detection device disposed on the target truck;

[0011] A radio frequency performance detection module, used to determine whether the radio frequency performance index of the device meets a preset detection standard according to changes in the antenna field strength value and the antenna frequency value;

[0012] The first determination module is used to determine that the device antenna is operating normally when the radio frequency performance index of the device meets a preset detection standard.

[0013] At least one embodiment of the present application further provides a truck, comprising the above-mentioned device for detecting the operating status of the equipment.

[0014] At least one embodiment of the present application also provides an electronic device, comprising: at least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor so that the at least one processor can execute the above-mentioned method for detecting the operating status of the device.

[0015] At least one embodiment of the present application further provides a computer-readable storage medium storing a computer program, wherein the computer program implements the above-mentioned method for detecting the operating status of the device when executed by a processor.

[0016] The embodiments of the present application provide a method for detecting the operating status of the equipment, a truck, an electronic device, and a storage medium. The detection device on the target truck automatically obtains the antenna field strength value and the antenna frequency value within the working range of the equipment, without the need for manual measurement by manually holding an electronic tag, thereby greatly improving the detection efficiency. And the method can obtain the antenna field strength value and the antenna frequency value within the working range of the equipment in real time, and the data is updated in a timely manner with high accuracy. According to the changes in the antenna field strength value and the antenna frequency value, it can automatically determine whether the radio frequency performance index meets the preset detection standard, avoiding the possible errors in manual judgment. In addition, the method does not require manual online operation, so the skylight plan can be arranged more flexibly, reducing the occupation of the skylight time, so that the skylight plan can be used more for other maintenance operations, improving the overall maintenance efficiency.

[0017] In some optional embodiments, when the radio frequency performance index of the device meets the preset detection standard and it is determined that the device antenna operates normally, the method further includes:

[0018] Detecting whether the tag recognition function of the device is normal, wherein the target truck is provided with an active tag to be recognized by the device; when the tag recognition function of the device is normal, determining that the operating state of the device is normal.

[0019] In this embodiment, a detection link for the device tag recognition function is added, that is, after determining that the device antenna is operating normally, the tag recognition function of the device is further detected to see if it is normal. By adding the detection of the tag recognition function, the overall performance of the device can be comprehensively evaluated. The normal operation of the antenna is only part of the device performance, while the tag recognition function is the basis for the device to realize key functions such as automatic vehicle number recognition. Detecting the antenna performance alone may not fully reflect the actual operating status of the device. By comprehensively detecting the antenna performance and the tag recognition function, the overall operating status of the device can be judged more accurately.

[0020] In some optional embodiments, the detecting whether the tag recognition function of the device is normal includes:

[0021] Modifying tag information of the active tag;

[0022] Obtaining a recognition result of the device on the modified tag information;

[0023] The modified tag information is compared with the identification result of the device to determine whether it is consistent, so as to determine whether the tag identification function of the device is normal.

[0024] In this embodiment, by modifying the tag information, the tag recognition function of the device can be dynamically verified. This method can better reflect the performance of the device in actual application compared to static detection. By comparing the modified tag information with the recognition result of the device, direct evidence can be obtained to determine whether the tag recognition function of the device is normal.

[0025] In some optional embodiments, determining whether the radio frequency performance index of the device meets a preset detection standard according to changes in the antenna field strength value and the antenna frequency value includes:

[0026] When the antenna field strength value changes from being greater than a preset field strength threshold to being less than the field strength threshold for the first time, acquiring a first antenna frequency value at this time, and a duration during which the antenna field strength value is greater than the field strength threshold;

[0027] Obtaining the running speed of the target truck, and determining the effective tag reading distance of the device according to the running speed and the duration;

[0028] It is detected whether the first antenna frequency value meets the preset frequency standard, and whether the tag effective reading distance meets the preset distance standard, so as to determine whether the radio frequency performance index of the device meets the preset detection standard.

[0029] In this embodiment, by monitoring the change of the antenna field strength value and acquiring relevant data when the field strength value changes from greater than a preset threshold to less than a threshold for the first time, the change point of the device's RF performance can be captured more accurately. By calculating the effective tag reading distance, the maximum distance at which the device can accurately read the tag under specific conditions can be determined. By regularly testing the device's RF performance indicators and combining the evaluation of the effective tag reading distance, potential RF performance problems of the device can be discovered in a timely manner, thereby taking preventive maintenance measures to avoid device failures in actual operation.

[0030] In some optional embodiments, the device is set with multiple frequency values, and the detecting whether the first antenna frequency value meets a preset frequency standard includes:

[0031] Detect whether the first antenna frequency value is within a fluctuation range corresponding to any of the frequency point values.

[0032] In this embodiment, the device sets multiple frequency values, which means that the device can work at different frequencies to adapt to different application scenarios or requirements. By detecting whether the first antenna frequency value is within the fluctuation range corresponding to any frequency value, it can be flexibly determined whether the device meets the preset frequency standard.

[0033] In some optional embodiments, determining whether the radio frequency performance index of the device meets a preset detection standard according to the change of the antenna field strength value and the antenna frequency value further includes:

[0034] When the antenna field strength value is continuously less than the field strength threshold, it is determined that the operating state of the device is abnormal.

[0035] In this embodiment, when the antenna field strength value is continuously lower than the field strength threshold, it indicates that there may be a problem with the RF performance of the device, which may cause fluctuations in the overall system performance. By continuously monitoring the antenna field strength value, once it is found that it is continuously lower than the preset field strength threshold, it can be immediately determined that the operating status of the device is abnormal. This instant feedback mechanism helps to quickly respond to and handle potential device failures. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] One or more embodiments are exemplarily described by the pictures in the corresponding drawings, and these exemplary descriptions do not constitute limitations on the embodiments.

[0037] Figure 1This is a process of a method for detecting the operating status of a device provided in an embodiment of the present application. Figure 1 ;

[0038] Figure 2 This is a process of a method for detecting the operating status of a device provided in an embodiment of the present application. Figure 2 ;

[0039] Figure 3 It is a schematic diagram of a device for detecting the operating status of a device provided in another embodiment of the present application. DETAILED DESCRIPTION

[0040] To make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the embodiments of the present application will be described in detail below in conjunction with the accompanying drawings. However, it will be appreciated by those skilled in the art that in the present application, many technical details are proposed in order to enable the reader to better understand the present application. However, even without these technical details and various changes and modifications based on the following embodiments, the technical scheme claimed in the present application can also be implemented. The division of the following embodiments is for the convenience of description, and the specific implementation of the present application should not be construed as any limitation, and the various embodiments can be combined and referenced with each other under the premise of no contradiction.

[0041] In order to solve the technical problem that the above-mentioned manual online inspection needs to be carried out under the condition of a skylight plan, which greatly affects the working efficiency and it is difficult to achieve full coverage inspection of the automatic vehicle number recognition equipment, the present invention proposes a method for detecting the operating status of the equipment. The implementation details of the method for detecting the operating status of the equipment in this embodiment are specifically described below. The following content is only the implementation details provided for the convenience of understanding and is not necessary for the implementation of this solution.

[0042] Embodiment 1:

[0043] The device operation status detection method of this embodiment can be applied to electronic devices with communication, computing and data storage capabilities. The specific process can be as follows: Figure 1 As shown, including:

[0044] Step 110, in response to the target truck entering the detection area where the device is located, using the detection device disposed on the target truck to obtain the antenna field strength value and antenna frequency value within the working range of the device in real time;

[0045] In this embodiment, the detected device can be a device with radio frequency identification function, such as AEI equipment, i.e., railway vehicle number automatic identification equipment. This device integrates electronic tags, ground identification equipment, data transmission and processing, and can automatically identify and read the electronic tag information at the bottom of the vehicle when the truck (train) passes at high speed, including the vehicle number, vehicle model, vehicle technical parameters, etc., and transmit this information to the central processing system in real time for subsequent management and scheduling.

[0046] In order to ensure the stable operation of the AEI equipment, it is necessary to monitor the operating status of its core equipment, the radio frequency identification device (RFID Reader), in real time. In this embodiment, the antenna field strength value and antenna frequency value obtained by the detection device set on the target truck are used to determine whether the radio frequency performance index of the RFID Reader meets the preset detection standard, thereby determining whether its antenna is operating normally.

[0047] In order to obtain the antenna field strength and antenna frequency values ​​within the working range of the RFID Reader in real time, a detection device needs to be installed on the truck. The detection device can be an RFID tag reader that integrates antenna field strength measurement and frequency analysis functions or a special measuring instrument. It has the following characteristics:

[0048] High precision: It can accurately measure the antenna field strength and frequency values ​​to ensure the accuracy of the data.

[0049] Real-time: Ability to transmit measurement data in real time so as to judge the operating status of the equipment in time.

[0050] Stability: Able to operate stably in various environments without external interference.

[0051] When the target truck enters the detection area where the RFID Reader (or device) is located, a trigger mechanism is required to start the subsequent monitoring process. This trigger mechanism can be implemented in many ways, such as:

[0052] Geomagnetic induction: A geomagnetic sensor is installed on the ground in the detection area. When a truck passes by, the magnetic field of the geomagnetic sensor changes, triggering the monitoring process.

[0053] Infrared sensing: Infrared transmitters and receivers are installed at the entrance and exit of the detection area. When a truck passes by, the infrared light is blocked, thus triggering the monitoring process.

[0054] RFID tags: RFID tags are pre-installed on trucks. When the truck enters the detection area, the RFID Reader reads the tag information, thereby triggering the monitoring process.

[0055] The data obtained by the detection device on the truck needs to be transmitted to the monitoring center or the system where the RFID reader is located in some way. This can be achieved through wired or wireless methods. For example: Wired transmission: If the truck needs to stay in a fixed detection area for a period of time, the detection device can be connected to the monitoring center through a data cable to transmit data in real time. Or, wireless transmission: If the truck needs to pass through the detection area quickly, the data can be transmitted to the monitoring center through wireless communication technologies such as Wi-Fi, Bluetooth or 4G / 5G.

[0056] The antenna field strength value refers to the strength of the electromagnetic field generated by the device antenna when it is working. There are many methods to measure the antenna field strength value, such as the electric field probe method (using an electric field probe to directly measure the electric field strength around the antenna), the tag reading rate method (indirectly reflecting the antenna field strength value by measuring the reading rate of the RFID tag within a certain distance), etc. In this embodiment, the detection device on the truck uses the electric field probe method to measure the antenna field strength value to ensure the accuracy of the data. At the same time, in order to reduce the impact of environmental interference on the measurement results, environmental calibration can be performed before measurement.

[0057] The antenna frequency value refers to the operating frequency of the device antenna. The method for measuring the antenna frequency value in this embodiment is the direct counting method. This method calculates the frequency by measuring the number of cycles of the RF signal within a fixed time. Specifically, the RF signal is sent to the CPU interrupt INTR0 after passing through the shaping circuit, and the trigger signal on INTR0 is timed using the CPU timer, so that the frequency value of the RF signal can be calculated.

[0058] Step 120, determining whether the radio frequency performance index of the device meets a preset detection standard according to changes in the antenna field strength value and the antenna frequency value;

[0059] In this embodiment, in order to determine whether the RF performance indicators of the device meet the requirements, a series of preset standards need to be formulated. These standards can be formulated based on factors such as the device model, application scenario, and performance requirements. For example, for an RFID reader used in a highway toll station, the following preset standards can be formulated:

[0060] Antenna field strength range: At 1 meter away from the RFID Reader antenna, the electric field strength should be between -40dBm and -10dBm.

[0061] Antenna frequency stability: The operating frequency of the RFID Reader should fluctuate within the range of 915MHz±5MHz.

[0062] Tag reading rate: Within the range of 1 to 5 meters from the RFID Reader antenna, the tag reading rate should be no less than 99%.

[0063] The data obtained by the detection device on the truck needs to be compared and analyzed with the preset standard. In some optional embodiments, the following processing is performed during the comparison and analysis process:

[0064] 1) Data synchronization: Ensure that the data obtained by the detection device on the truck is synchronized with the working status of the equipment to avoid misjudgment due to time asynchrony.

[0065] 2) Data screening: Screen the acquired data and remove outliers or invalid data to ensure the accuracy of the analysis results.

[0066] Step 130: When the radio frequency performance index of the device meets the preset detection standard, it is determined that the device antenna operates normally.

[0067] In this embodiment, based on the results of the comparative analysis, it is determined whether the RF performance indicators of the device meet the preset standards. If the standards are met, it is determined that the device antenna is operating normally; if the standards are not met, it is determined that the device antenna is operating abnormally and further maintenance measures need to be taken. For example, the results of the comparative analysis are output to the user or the monitoring center in a specific manner, which can be achieved by screen display, printing reports, sending text messages or emails, etc. At the same time, if the RF performance indicators of the device do not meet the preset standards, an alarm mechanism needs to be triggered so that relevant personnel can be notified in time for processing.

[0068] The alarm mechanism can be implemented in a variety of ways, such as: Sound alarm: Install a sound alarm at the monitoring center or on the truck, and sound an alarm when the device antenna is operating abnormally. Light alarm: Install a light alarm at the monitoring center or on the truck, and light an alarm when the device antenna is operating abnormally. Remote notification: Send the alarm information to relevant personnel through SMS, email or APP push, so that they can take timely measures to deal with it.

[0069] In summary, the detection method for the equipment operating status provided in this embodiment automatically obtains the antenna field strength value and antenna frequency value within the working range of the equipment through the detection device on the target truck, without the need for manual measurement by manually holding an electronic tag, thereby greatly improving the detection efficiency. And this method can obtain the antenna field strength value and antenna frequency value within the working range of the equipment in real time, and the data is updated in a timely manner with high accuracy. According to the changes in the antenna field strength value and the antenna frequency value, it can automatically determine whether the radio frequency performance index meets the preset detection standard, avoiding the possible errors in manual judgment. In addition, this method does not require manual online operation, so the skylight plan can be arranged more flexibly, reducing the occupancy of the skylight time, so that the skylight plan can be used more for other maintenance operations, improving the overall maintenance efficiency.

[0070] In some embodiments, in some optional embodiments, when the radio frequency performance index of the device meets the preset detection standard and it is determined that the antenna of the device is operating normally, it also includes: detecting whether the tag recognition function of the device is normal, wherein an active tag to be recognized by the device is provided on the target truck; when the tag recognition function of the device is normal, it is determined that the operating status of the device is normal.

[0071] In this embodiment, a detection link for the device tag recognition function is added, that is, after determining that the device antenna is operating normally, the tag recognition function of the device is further detected to see if it is normal. By adding the detection of the tag recognition function, the overall performance of the device can be comprehensively evaluated. The normal operation of the antenna is only part of the device performance, while the tag recognition function is the basis for the device to realize key functions such as automatic vehicle number recognition. Detecting the antenna performance alone may not fully reflect the actual operating status of the device. By comprehensively detecting the antenna performance and the tag recognition function, the overall operating status of the device can be judged more accurately.

[0072] In some optional embodiments, detecting whether the tag identification function of the device is normal includes: modifying the tag information of the active tag; obtaining the identification result of the device for the modified tag information; comparing the modified tag information with the identification result of the device to determine whether the tag identification function of the device is normal.

[0073] In this embodiment, by modifying the tag information, the tag recognition function of the device can be dynamically verified. This method can better reflect the performance of the device in actual application compared to static detection. By comparing the modified tag information with the recognition result of the device, direct evidence can be obtained to determine whether the tag recognition function of the device is normal.

[0074] For example: after confirming that the target truck has an active tag installed and the tag is in normal working condition, use the tool or software for modifying tag information (usually provided by the tag supplier) to modify the tag information. You can modify the target truck's vehicle number, tag ID, or cargo information, etc. When modifying the tag information, ensure that the modification process does not damage the tag or affect its normal operation. The modified tag information can be any new information, as long as it is different from the original information.

[0075] When the target truck passes by the device, the device can read the modified tag information. The tag information read by the device is recorded as the recognition result. The modified tag information is compared with the recognition result read by the device. If the two are completely consistent, it means that the tag recognition function of the device is normal; if the two are inconsistent, it means that there is a problem with the tag recognition function of the device, and further inspection and debugging are required.

[0076] In some optional embodiments, determining whether the RF performance index of the device meets the preset detection standard based on the changes in the antenna field strength value and the antenna frequency value includes: when the antenna field strength value changes from greater than a preset field strength threshold to less than the field strength threshold for the first time, obtaining the first antenna frequency value at this time, and the duration that the antenna field strength value is greater than the field strength threshold; obtaining the running speed of the target truck, and determining the effective reading distance of the device's tag based on the running speed and the duration; detecting whether the first antenna frequency value meets the preset frequency standard, and whether the effective reading distance of the tag meets the preset distance standard, to determine whether the RF performance index of the device meets the preset detection standard.

[0077] In this embodiment, by monitoring the change of the antenna field strength value and acquiring relevant data when the field strength value changes from greater than a preset threshold to less than a threshold for the first time, the change point of the device's RF performance can be captured more accurately. By calculating the effective tag reading distance, the maximum distance at which the device can accurately read the tag under specific conditions can be determined. By regularly testing the device's RF performance indicators and combining the evaluation of the effective tag reading distance, potential RF performance problems of the device can be discovered in a timely manner, thereby taking preventive maintenance measures to avoid device failures in actual operation.

[0078] For example, the standard of field strength is: when the field strength is less than 3.5V / m (i.e., the field strength threshold mentioned above), the tag cannot work normally; when the field strength of the tag is greater than 3.5V / m, the tag can work normally. According to the requirements of this indicator, the detection device can judge the value of the field strength around the receiving antenna in real time. When the field strength is greater than 3.5V / m, the timer is started and the frequency of the signal is measured at the same time. Once the field strength becomes less than 3.5V / m, the microcontroller of the vehicle-mounted automatic detection device takes out the value of the timer and then calculates the measured frequency value, i.e., the first antenna frequency value. The measured time value (i.e., the duration of the antenna field strength value greater than the field strength threshold) and the first antenna frequency value are sent to the vehicle-mounted main control together, and the vehicle-mounted main control transmits the measured value wirelessly to the remote server for quantitative judgment.

[0079] The specific identification process is as follows:

[0080] First, the server determines whether the first frequency value reported by the detection is equal to the frequency standard preset in the device;

[0081] Secondly, the server obtains the duration of the field strength greater than 3.5V / m through the timer value reported by the detection. The duration and the vehicle running speed reported to the server by the positioning system can be used to calculate the distance at which the field strength is greater than 3.5V / m, that is, the effective tag reading distance. When the effective tag reading distance meets the preset distance standard, it means that the device has enough distance to perform normal reading operations on the target truck's tag.

[0082] When the first antenna frequency value meets the preset frequency standard and the tag effective reading distance also meets the preset distance standard, it is determined that the radio frequency performance index of the device meets the preset detection standard and the device antenna is judged to be operating normally.

[0083] In some optional embodiments, the device is provided with a plurality of frequency values, and the detecting whether the first antenna frequency value meets a preset frequency standard includes: detecting whether the first antenna frequency value is within a fluctuation range corresponding to any one of the frequency values.

[0084] In this embodiment, the device sets multiple frequency values, which means that the device can work at different frequencies to adapt to different application scenarios or requirements. By detecting whether the first antenna frequency value is within the fluctuation range corresponding to any frequency value, it can be flexibly determined whether the device meets the preset frequency standard.

[0085] For example, if three frequency points are set in the device, namely 910.1 MHz, 912.1 MHz and 914.1 MHz, as long as the first antenna frequency value is within the fluctuation range corresponding to any one of the three frequency points, it is determined that the RF performance index of the device meets the preset detection standard.

[0086] In some optional embodiments, determining whether the radio frequency performance index of the device meets a preset detection standard based on changes in the antenna field strength value and the antenna frequency value also includes: when the antenna field strength value is continuously less than the field strength threshold, determining that the operating state of the device is abnormal.

[0087] In this embodiment, when the antenna field strength value is continuously lower than the field strength threshold, it indicates that there may be problems with the RF performance of the device, which may cause fluctuations in the overall performance of the system. By continuously monitoring the antenna field strength value, once it is found that it is continuously lower than the preset field strength threshold, it can be immediately determined that the operating state of the device is abnormal. This instant feedback mechanism helps to quickly respond to and handle potential equipment failures. For example, when the detection device detects that the antenna field strength value is continuously lower than the field strength threshold of 3.5V / m, it means that the device cannot work normally.

[0088] Embodiment 2:

[0089] Based on the above embodiments, this embodiment provides an application example. A truck is provided, and a vehicle-mounted automatic detection device is installed at the bottom of the truck. When the truck normally travels on the rails and enters the working range of the vehicle number automatic recognition device, the vehicle-mounted automatic detection device automatically detects the vehicle number automatic recognition device.

[0090] The evaluation of the working status of the automatic vehicle number recognition equipment mainly includes three items: the field strength value of the equipment antenna, the frequency value of the antenna and the reading accuracy of the vehicle number data:

[0091] The first aspect: Dynamically detect the radio frequency performance indicators of AEI equipment, including microwave transmission frequency and effective tag reading distance.

[0092] In order to obtain the above information, this embodiment places the on-board automatic detection device (i.e. the detection device in the above embodiment) on the bottom of the truck. The detection receiving antenna is installed on the bottom of the truck, and the field strength and frequency of the RF antenna working range of the vehicle number automatic recognition device passing by are dynamically detected, so as to calculate the effective tag reading distance and RF transmission frequency value of the antenna (RF antenna of the vehicle number automatic recognition device).

[0093] The frequency value calculation principle is that the RF signal is sent to the CPU interrupt INTR0 after passing through the shaping circuit, and the trigger signal on INTR0 is timed by the CPU timer, so that the frequency value of the RF signal can be calculated. The CPU main frequency is 72MHz, and the timer count value is 256*256=65536. Then the frequency is:

[0094] f=72*256*256 / X, that is, f=4718592 / X, where X is the timer count value. Assuming X=0x1441 (decimal 5185), f=72*256*256 / 5185≈910.1MHz.

[0095] When the field strength of the tag is less than 3.5V / m (3.5 volts per meter), the tag cannot work normally; when the field strength of the tag is greater than 3.5V / m, the tag can work normally. According to this indicator requirement, the on-board automatic detection device can determine the value of the field strength around the vehicle bottom detection receiving antenna in real time. When the field strength is greater than 3.5V / m, the timer is started and the frequency of the signal is measured. Once the field strength becomes less than 3.5V / m, the microcontroller of the on-board automatic detection device takes out the value of the timer and then calculates the measured frequency value. If the measured frequency value matches the three fixed frequency points emitted by RF, the measured time value and frequency value are sent to the on-board main control together, and the on-board main control transmits the measured value wirelessly to the remote server for quantitative judgment. Thus, the running status judgment data of the vehicle number automatic recognition equipment is obtained.

[0096] First, the server determines whether the frequency value reported by the detection is equal to the frequency point value set in the ground vehicle number recognition device (the setting value is 910.1MHz, 912.1MHz, 914.1MHz). Secondly, the server obtains the duration of the field strength greater than 3.5V / m through the timer value reported by the detection. The duration and the vehicle running speed reported to the server by the vehicle-mounted Beidou positioning system can be used to calculate the distance at which the field strength is greater than 3.5V / m. When the distance is greater than 2.8 meters, there is enough distance to read the vehicle tag normally, and it is determined that the antenna of the ground vehicle number recognition device is operating normally. For example, if the timer value reported by the detection is 0x00C8 (decimal 200, unit ms), the duration of the field strength greater than 3.5V / m is 200ms, and the vehicle running speed reported by the positioning system is 60Km / h. It can be calculated that the distance at which the field strength is greater than 3.5V / m is 60 / 3.6*0.2=3.33m>2.8m, and the antenna of the vehicle number recognition device is operating normally.

[0097] The second aspect: through the on-board active tag - rewritable tag - simulated vehicle number information - compared with the vehicle number information recognized by the automatic vehicle number recognition device, it is detected whether the automatic vehicle number recognition device reads the label information part normally; after the truck passes through each automatic vehicle number recognition device, the remote server can obtain the message information uploaded by the automatic vehicle number recognition device, and then determine the working condition of its equipment based on the information comparison.

[0098] The overall flow chart of the detection method of the equipment operation status is as follows Figure 2 shown.

[0099] The advantage of the method of this embodiment over the manual online detection method is that it can be easy to operate, the system works stably, and the indicators with representative significance can be selected for accurate measurement without affecting the automatic vehicle number recognition equipment, and the results can be wirelessly transmitted to the remote server for automatic evaluation. The labor cost and safety risks of manual online operations are greatly reduced. The detection indicators are quantified and made explicit, which solves the problem in the prior art that manual inspection can only make a rough judgment on the operating status of the equipment, and there is no standardized judgment on the operating status of the equipment, thereby helping the operating unit to better determine the operating status of the automatic vehicle number recognition equipment, and helping the operating unit to better prepare equipment maintenance and iteration plans.

[0100] Embodiment three:

[0101] Another embodiment of the present application relates to a device for detecting the operating status of a device. The implementation details of the device for detecting the operating status of the device of this embodiment are described in detail below. The following content is only for the convenience of understanding the implementation details provided, and is not necessary for implementing this solution. The schematic diagram of the device for detecting the operating status of the device of this embodiment can be as follows: Figure 3As shown, it includes a radio frequency parameter acquisition module 310, a radio frequency performance detection module 320 and a first determination module 330.

[0102] The radio frequency parameter acquisition module 310 is used to obtain the antenna field strength value and antenna frequency value within the working range of the device in real time by using the detection device arranged on the target truck in response to the target truck entering the detection area where the device is located;

[0103] A radio frequency performance detection module 320, configured to determine whether the radio frequency performance index of the device meets a preset detection standard according to changes in the antenna field strength value and the antenna frequency value;

[0104] The first determination module 330 is configured to determine that the device antenna is operating normally when the radio frequency performance index of the device meets a preset detection standard.

[0105] It is worth mentioning that all modules involved in this embodiment are logic modules. In practical applications, a logic unit can be a physical unit, a part of a physical unit, or a combination of multiple physical units. In addition, in order to highlight the innovative part of this application, this embodiment does not introduce units that are not closely related to solving the technical problems proposed by this application, but this does not mean that there are no other units in this embodiment.

[0106] Embodiment 4:

[0107] Another embodiment of the present application relates to an electronic device, comprising: at least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor so that the at least one processor can execute the device operating status detection method in the above-mentioned embodiments.

[0108] Among them, the memory and the processor are connected in a bus manner, and the bus may include any number of interconnected buses and bridges, and the bus connects various circuits of one or more processors and memories together. The bus can also connect various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and are therefore not further described herein. The bus interface provides an interface between the bus and the transceiver. The transceiver can be one element or multiple elements, such as multiple receivers and transmitters, providing a unit for communicating with various other devices on a transmission medium. The data processed by the processor is transmitted on a wireless medium via an antenna, and further, the antenna also receives data and transmits the data to the processor.

[0109] The processor is responsible for managing the bus and general processing, and can also provide various functions, including timing, peripheral interfaces, voltage regulation, power management, and other control functions. Memory can be used to store data used by the processor when performing operations.

[0110] Embodiment five:

[0111] Another embodiment of the present application relates to a computer-readable storage medium storing a computer program, which implements the above method embodiment when executed by a processor.

[0112] That is, those skilled in the art can understand that all or part of the steps in the above-mentioned embodiment method can be completed by instructing the relevant hardware through a program, and the program is stored in a storage medium, including a number of instructions to enable a device (which can be a single-chip microcomputer, chip, etc.) or a processor to execute all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (Read-Only Memory, referred to as: ROM), random access memory (Random Access Memory, referred to as: RAM), disk or optical disk and other media that can store program codes.

[0113] Those skilled in the art will appreciate that the above embodiments are specific embodiments for implementing the present application, and in actual applications, various changes may be made thereto in form and detail without departing from the spirit and scope of the present application.

Claims

1. A method for detecting the operating status of a device, characterized in that: include: In response to a target truck entering a detection area where the device is located, using a detection device disposed on the target truck to obtain in real time an antenna field strength value and an antenna frequency value within a working range of the device; Determining whether the radio frequency performance index of the device meets a preset detection standard according to changes in the antenna field strength value and the antenna frequency value; When the radio frequency performance index of the device meets the preset detection standard, it is determined that the device antenna operates normally.

2. The method for detecting the operating status of the equipment according to claim 1, characterized in that: When the radio frequency performance index of the device meets the preset detection standard and it is determined that the device antenna operates normally, the method further includes: Detecting whether the tag recognition function of the device is normal, wherein the target truck is provided with an active tag to be recognized by the device; When the tag recognition function of the device is normal, it is determined that the operating state of the device is normal.

3. The method for detecting the operating status of the equipment according to claim 2, characterized in that: The detecting whether the tag recognition function of the device is normal includes: Modifying tag information of the active tag; Obtaining a recognition result of the device on the modified tag information; The modified tag information is compared with the identification result of the device to determine whether the tag identification function of the device is normal.

4. The method for detecting the operating status of an equipment according to claim 1, characterized in that: The determining, according to the change of the antenna field strength value and the antenna frequency value, whether the radio frequency performance index of the device meets the preset detection standard includes: When the antenna field strength value changes from being greater than a preset field strength threshold to being less than the field strength threshold for the first time, acquiring a first antenna frequency value at this time, and a duration during which the antenna field strength value is greater than the field strength threshold; Obtaining the running speed of the target truck, and determining the effective tag reading distance of the device according to the running speed and the duration; It is detected whether the first antenna frequency value meets the preset frequency standard, and whether the tag effective reading distance meets the preset distance standard, so as to determine whether the radio frequency performance index of the device meets the preset detection standard.

5. The method for detecting the operating status of equipment according to claim 4, characterized in that: The device is provided with a plurality of frequency points. The detecting whether the first antenna frequency value meets a preset frequency standard includes: Detect whether the first antenna frequency value is within a fluctuation range corresponding to any of the frequency point values.

6. The method for detecting the operating status of equipment according to claim 4, characterized in that: The determining, according to the change of the antenna field strength value and the antenna frequency value, whether the radio frequency performance index of the device meets the preset detection standard also includes: When the antenna field strength value is continuously less than the field strength threshold, it is determined that the operating state of the device is abnormal.

7. A device for detecting the operating status of an equipment, characterized in that: include: A radio frequency parameter acquisition module, for obtaining, in response to a target truck entering a detection area where the device is located, a real-time antenna field strength value and an antenna frequency value within a working range of the device using a detection device disposed on the target truck; A radio frequency performance detection module, used to determine whether the radio frequency performance index of the device meets a preset detection standard according to changes in the antenna field strength value and the antenna frequency value; The first determination module is used to determine that the device antenna is operating normally when the radio frequency performance index of the device meets a preset detection standard.

8. A truck, characterized in that: A device for detecting the operating status of the equipment as described in claim 7.

9. An electronic device, characterized in that: include: at least one processor; as well as, a memory communicatively connected to the at least one processor; wherein, The memory stores instructions that can be executed by the at least one processor, and the instructions are executed by the at least one processor so that the at least one processor can execute the method for detecting the operating status of the device as described in any one of claims 1-7.

10. A computer-readable storage medium storing a computer program, characterized in that: When the computer program is executed by a processor, the method for detecting the operating status of a device according to any one of claims 1 to 7 is implemented.

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