CN114189897B - Fault detection method and device for wireless sensor system - Google Patents
Fault detection method and device for wireless sensor system Download PDFInfo
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- CN114189897B CN114189897B CN202111341044.7A CN202111341044A CN114189897B CN 114189897 B CN114189897 B CN 114189897B CN 202111341044 A CN202111341044 A CN 202111341044A CN 114189897 B CN114189897 B CN 114189897B
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- H—ELECTRICITY
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Abstract
The application provides a fault detection method and device for a wireless sensor system, and relates to the field of coal exploitation. The method comprises the steps of receiving first sensing data sent by a first wireless gateway through a communication interface, wherein the first sensing data are sensing data of the wireless sensor received by a main frequency point of the first wireless gateway; receiving second sensing data sent by a second wireless gateway associated with the first wireless gateway through a communication interface, wherein the second sensing data is sensing data of a wireless sensor received by a standby frequency point of the second wireless gateway, and the working frequency band of the standby frequency point of the second wireless gateway is the same as the working frequency band of a main frequency point of the first wireless gateway; based on the first sensing data and the second sensing data, fault detection is performed on the wireless sensor. The wireless gateway is provided with the main frequency point and the standby frequency point, so that the situation that wireless signal transmission is affected due to shielding between the wireless sensor and the wireless gateway at certain positions is avoided, and the equipment maintenance workload is reduced.
Description
Technical Field
The application relates to the field of coal exploitation, in particular to a fault detection method and device of a wireless sensor system.
Background
When carrying out colliery underground comprehensive exploitation operation, wireless sensor need communicate with wireless gateway to make the sensing data of the hydraulic support that wireless sensor gathered can send wireless gateway to, and then send the gesture of support controller control hydraulic support, but have wireless sensor to break down, thereby lead to sensing data transmission abnormal condition.
Disclosure of Invention
The present application aims to solve, at least to some extent, one of the technical problems in the related art.
Therefore, an object of the present application is to provide a fault detection method of a wireless sensor system, by receiving first sensing data sent by a first wireless gateway through a communication interface, where the first sensing data is sensing data of the wireless sensor received by a main frequency point of the first wireless gateway; receiving second sensing data sent by a second wireless gateway associated with the first wireless gateway through the communication interface, wherein the second sensing data is sensing data of the wireless sensor received by a standby frequency point of the second wireless gateway, and the working frequency band of the standby frequency point of the second wireless gateway is the same as the working frequency band of a main frequency point of the first wireless gateway; and performing fault detection on the wireless sensor based on the first sensing data and the second sensing data.
The wireless gateway of this application is provided with the main frequency point of prepareeing, and wireless sensor can be with the hydraulic support data transmission who obtains for first wireless gateway and second wireless gateway, has avoided because of taking place the hydraulic support and has removed, causes there to shelter from between wireless sensor and the wireless gateway in certain position, influences the condition of wireless signal transmission, has also reduced equipment maintenance and maintenance work load under the complex environment of colliery comprehensive exploitation working face simultaneously.
A second object of the present application is to propose a fault detection device of a wireless sensor system.
A third object of the present application is to propose a hydraulic support comprising: the fault detection device of the wireless sensor system as described above.
A fourth object of the present application is to propose an electronic device.
A fifth object of the present application is to propose a non-transitory computer readable storage medium.
A sixth object of the present application is to propose a computer programme product.
To achieve the above object, an embodiment of a first aspect of the present application provides a fault detection method for a wireless sensor system, where the wireless sensor system includes a hydraulic support controller and a plurality of wireless gateways, each of the wireless gateways correspondingly manages at least one wireless sensor; comprising the following steps: receiving first sensing data sent by a first wireless gateway through a communication interface, wherein the first sensing data is sensing data of the wireless sensor received by a main frequency point of the first wireless gateway; receiving second sensing data sent by a second wireless gateway associated with the first wireless gateway through the communication interface, wherein the second sensing data is sensing data of the wireless sensor received by a standby frequency point of the second wireless gateway, and the working frequency band of the standby frequency point of the second wireless gateway is the same as the working frequency band of a main frequency point of the first wireless gateway; and performing fault detection on the wireless sensor based on the first sensing data and the second sensing data.
The wireless gateway of this application is provided with the main frequency point of prepareeing, and wireless sensor can be with the hydraulic support data transmission who obtains for first wireless gateway and second wireless gateway, has avoided because of taking place the hydraulic support and has removed, causes there to shelter from between wireless sensor and the wireless gateway in certain position, influences the condition of wireless signal transmission, has also reduced equipment maintenance and maintenance work load under the complex environment of colliery comprehensive exploitation working face simultaneously.
To achieve the above object, a second aspect of the present application provides a fault detection device of a wireless sensor system, where the wireless sensor system includes a hydraulic support controller and a plurality of wireless gateways, each of the wireless gateways correspondingly manages at least one wireless sensor, and the fault detection device includes: the first receiving module is used for receiving first sensing data sent by a first wireless gateway through a communication interface, wherein the first sensing data are the sensing data of the wireless sensor received by a main frequency point of the first wireless gateway; the second receiving module is used for receiving second sensing data sent by a second wireless gateway associated with the first wireless gateway through the communication interface, wherein the second sensing data is the sensing data of the wireless sensor received by a standby frequency point of the second wireless gateway, and the working frequency band of the standby frequency point of the second wireless gateway is the same as the working frequency band of a main frequency point of the first wireless gateway; and the fault detection module is used for detecting faults of the wireless sensor based on the first sensing data and the second sensing data.
To achieve the above object, an embodiment of a third aspect of the present application proposes a hydraulic support, including a fault detection device of a wireless sensor system according to an embodiment of the second aspect.
To achieve the above object, an embodiment of a fourth aspect of the present application provides an electronic device, including: at least one processor; and a memory communicatively coupled to the at least one processor; wherein the memory stores instructions executable by the at least one processor to implement a fault detection method for a wireless sensor system according to an embodiment of the first aspect of the present application.
To achieve the above object, an embodiment of a fifth aspect of the present application proposes a non-transitory computer readable storage medium storing computer instructions for implementing a fault detection method of a wireless sensor system according to an embodiment of the first aspect of the present application.
To achieve the above object, an embodiment of a sixth aspect of the present application proposes a computer program product comprising a computer program which, when executed by a processor, implements a fault detection method of a wireless sensor system according to an embodiment of the first aspect of the present application.
Drawings
Fig. 1 is a schematic diagram of a fault detection method of a wireless sensor system according to one embodiment of the present application.
Fig. 2 is a schematic illustration of the configuration and arrangement between hydraulic mounts according to one embodiment of the present application.
Fig. 3 is a schematic diagram of a wireless gateway managing wireless sensors according to one embodiment of the present application.
Fig. 4 is a schematic diagram of a wireless gateway according to an embodiment of the present application when the wireless gateway includes a standby frequency point.
Fig. 5 is a schematic diagram of a wireless gateway according to an embodiment of the present application when the wireless gateway includes two standby frequency points.
Fig. 6 is a schematic diagram of fault detection of a wireless sensor based on packet loss rates of first and second sensing data according to an embodiment of the present application.
FIG. 7 is a schematic diagram of fault detection of a wireless sensor based on a disconnection time period of first and second sensor data according to one embodiment of the present application.
Fig. 8 is a schematic diagram of fault detection of a wireless sensor according to battery level of the wireless sensor according to one embodiment of the present application.
Fig. 9 is a schematic diagram of a fault detection device of a wireless sensor system according to one embodiment of the present application.
Fig. 10 is a schematic diagram of a wireless gateway according to one embodiment of the present application.
Fig. 11 is a schematic diagram of a wireless sensor according to one embodiment of the present application.
Fig. 12 is a schematic diagram of an electronic device according to one embodiment of the present application.
Detailed Description
Embodiments of the present application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and intended for the purpose of explaining the present application and are not to be construed as limiting the present application.
Fig. 1 is an exemplary embodiment of a fault detection method of a wireless sensor system provided in the present application, where the wireless sensor system includes a hydraulic support controller and a plurality of wireless gateways, each of which manages at least one wireless sensor correspondingly, and as shown in fig. 1, the fault detection method of the wireless sensor system includes the following steps:
s101, receiving first sensing data sent by a first wireless gateway through a communication interface, wherein the first sensing data is sensing data of the wireless sensor received by a main frequency point of the first wireless gateway.
Each column in fig. 2 can be regarded as a configuration mounted on one hydraulic support, and in order to control the posture of the hydraulic support, as shown in fig. 2, a support controller is mounted on each hydraulic support, and the support controllers are numbered according to the arrangement sequence of the hydraulic supports during operation. In order to collect current state information of each hydraulic support, wireless sensors are installed on each hydraulic support, wherein one or more wireless sensors are installed on each hydraulic support. In fig. 2, 4 wireless sensors are shown as an example for each hydraulic support. Alternatively, the wireless sensor may be a plurality of types of sensors such as an attitude sensor, a pressure sensor, a stroke sensor, and the like.
In addition to the bracket controller and the wireless sensor, a wireless gateway is also arranged on the hydraulic bracket for realizing the communication of wireless sensor data. As shown in fig. 3, in order to save cost, a wireless gateway is typically installed on each of several hydraulic supports, and each wireless gateway can manage the hydraulic support where it is located and wireless sensors installed on several hydraulic supports near the hydraulic support where it is located, and each support controller has its corresponding wireless gateway.
And numbering the wireless gateways according to the arrangement sequence of the hydraulic supports, wherein each wireless gateway is provided with a corresponding wireless sensor group. And sequencing all the wireless sensor groups according to the serial number sequence of the wireless gateway and distributing the working frequency bands. The method comprises the steps of obtaining a preset lowest working frequency and a preset highest working frequency when the wireless gateway works, and dividing the total working frequency range of the wireless gateway, so that a plurality of working frequency ranges with smaller frequency ranges are obtained. Alternatively, equally spaced or incremental or decremental divisions may be employed when dividing the total operating frequency range of the wireless gateway.
According to the arrangement sequence of the wireless gateways, the obtained multiple working frequency bands with smaller frequency ranges are used as first working frequency bands, the working frequency bands are sequentially distributed to the main frequency points of each wireless gateway from low to high, and the first working frequency bands of the main frequency points of the adjacent wireless gateways are different. The wireless sensor groups managed by each wireless gateway work in a working frequency band consistent with a first working frequency band of a main frequency point of the wireless gateway. In order to realize space frequency multiplexing, a main frequency point and at least one standby frequency point are set for each wireless gateway, and the working frequency ranges of the main frequency point and the standby frequency point of each wireless gateway are different.
In some implementations, each wireless gateway may itself be considered a first wireless gateway, the wireless sensor transmits the sensing data to the first wireless gateway having a first operating frequency band of the main frequency point consistent with the operating frequency band of the wireless sensor, the first wireless gateway resends the sensing data to the bracket controller through the communication interface, and the bracket controller may receive the first sensing data transmitted by the first wireless gateway through the communication interface.
S102, receiving second sensing data sent by a second wireless gateway associated with the first wireless gateway through a communication interface, wherein the second sensing data is the sensing data of the wireless sensor received by a standby frequency point of the second wireless gateway, and the working frequency range of the standby frequency point of the second wireless gateway is the same as the working frequency range of a main frequency point of the first wireless gateway.
In order to realize spatial frequency multiplexing, each first wireless gateway is provided with a standby frequency point, and the number of the standby frequency points can be one or a plurality of standby frequency points. According to the number of standby frequency points of the first wireless gateway and the sequence of the first wireless gateway, a corresponding number of wireless gateways adjacent to the first wireless gateway is determined as targets associated with the first wireless gateway, and the targets are called second wireless gateways. The number of the second wireless gateways corresponding to each first wireless gateway is the same as the number of the standby frequency points of the wireless gateway.
When the wireless sensor sends the sensing data, the sensing data is sent to a first wireless gateway with the first working frequency band of the main frequency point being consistent with the working frequency band of the wireless sensor, and also sent to a second wireless gateway with the second working frequency band of the standby frequency point being consistent with the working frequency band of the wireless sensor, and the bracket controller can receive the second wireless gateway associated with the first wireless gateway and send the second sensing data through the communication interface.
As an implementation manner, if there is only one second wireless gateway corresponding to each obtained first wireless gateway, as shown in fig. 4, a first working frequency band of a main frequency point of the second wireless gateway may be configured to a standby frequency point of the first wireless gateway, and be used as a second working frequency band corresponding to the standby frequency point of the first wireless gateway. As shown in fig. 4, taking one wireless sensor 1 managed by the wireless gateway 2 as an example, the sensing data sent by the wireless sensor 1 to the main frequency point of the wireless gateway 2 is first sensing data, and the sensing data sent by the wireless sensor 1 to the standby frequency point of the wireless gateway 1 is second sensing data, where the main frequency point of the wireless gateway 2 is the same as the working frequency band of the standby frequency point of the wireless gateway 1.
As another implementation manner, if there are multiple second wireless gateways corresponding to each first wireless gateway, the first operating frequency bands of the main frequency points of the multiple second wireless gateways are respectively configured to multiple standby frequency points of the first wireless gateway, which are the second operating frequency bands corresponding to the multiple standby frequency points of the first wireless gateway, and fig. 5 takes two second wireless gateways corresponding to each first wireless gateway as an example, if each first wireless gateway includes two standby frequency points, two wireless gateways adjacent to the first wireless gateway are determined as the second wireless gateways, and the first operating frequency bands of the main frequency points of the two second wireless gateways are respectively configured to the multiple standby frequency points of the first wireless gateway, which are the second operating frequency bands corresponding to the multiple standby frequency points of the first wireless gateway. As shown in fig. 5, taking one wireless sensor 1 managed by the wireless gateway 2 as an example, sensing data sent by the wireless sensor 1 to a primary frequency point of the wireless gateway 2 is first sensing data, and sensing data sent by the wireless sensor 1 to a standby frequency point two of the wireless gateway 1 and a standby frequency point one of the wireless gateway 3 is second sensing data, where the primary frequency point of the wireless gateway 2 is the same as the working frequency band of the standby frequency point two of the wireless gateway 1 and the standby frequency point one of the wireless gateway 3.
And S103, performing fault detection on the wireless sensor based on the first sensing data and the second sensing data.
And analyzing the obtained first sensing data and second sensing data, and further judging whether the wireless sensor fails. Optionally, when the first sensing data and the second sensing data are analyzed, the packet loss rate, the disconnection time period, and the like of the first sensing data and the second sensing data may be analyzed.
The application provides a fault detection method of a wireless sensor system, which is characterized by receiving first sensing data sent by a first wireless gateway through a communication interface, wherein the first sensing data is the sensing data of the wireless sensor received by a main frequency point of the first wireless gateway; receiving second sensing data sent by a second wireless gateway associated with the first wireless gateway through a communication interface, wherein the second sensing data is sensing data of a wireless sensor received by a standby frequency point of the second wireless gateway, and the working frequency band of the standby frequency point of the second wireless gateway is the same as the working frequency band of a main frequency point of the first wireless gateway; based on the first sensing data and the second sensing data, fault detection is performed on the wireless sensor. The wireless gateway of this application is provided with the main frequency point of prepareeing, and wireless sensor can be with the hydraulic support data transmission who obtains for first wireless gateway and second wireless gateway, has avoided because of taking place the hydraulic support and has removed, causes there to shelter from between wireless sensor and the wireless gateway in certain position, influences the condition of wireless signal transmission, has also reduced equipment maintenance and maintenance work load under the complex environment of colliery comprehensive exploitation working face simultaneously.
Fig. 6 is an exemplary embodiment of a fault detection method of a wireless sensor system, as shown in fig. 6, for performing fault detection on a wireless sensor based on first sensing data and second sensing data, including the following steps:
s601, acquiring packet loss rates of the first sensing data and the second sensing data.
And acquiring the packet loss rate of the obtained first sensing data and second sensing data, wherein the packet loss rate refers to the ratio of the lost data quantity to the data quantity sent by the wireless sensor in the transmission process.
S602, if the packet loss rate of at least one of the first sensing data and the second sensing data is smaller than or equal to the packet loss threshold value, the wireless sensor is judged to be in a normal state.
In implementation, if the hydraulic support moves, shielding may exist between the wireless sensor and the wireless gateway at some positions to affect wireless signal transmission, so a packet loss threshold is set, if the packet loss rate of at least one of the first sensing data and the second sensing data is smaller than or equal to the packet loss threshold, it is indicated that the sensing data of the wireless sensor is normally received by the wireless gateway, and whether the normal receiving of the sensing data of the wireless sensor is the main frequency point of the first wireless gateway or the standby frequency point of the second wireless gateway, it is determined that the wireless sensor is in a normal state.
And S603, judging that the wireless sensor fails in response to the packet loss rate of the first sensing data and the second sensing data being greater than a packet loss threshold value.
Setting a packet loss threshold, if the packet loss rates of the first sensing data and the second sensing data are both larger than the packet loss threshold, indicating that the main frequency point of the first wireless gateway and the standby frequency point of the second wireless gateway do not normally receive the sensing data sent by the wireless sensor, and judging that the wireless sensor fails and needs to be overhauled.
According to the method and the device, the packet loss rate of the first sensing data and the packet loss rate of the second sensing data are compared with the packet loss threshold value, so that whether the wireless sensor fails or not is judged, and the failure can be found out in time when the packet loss rate of the sensing data transmission is large.
Fig. 7 is an exemplary embodiment of a fault detection method of a wireless sensor system, as shown in fig. 7, for performing fault detection on a wireless sensor based on first sensing data and second sensing data, including the following steps:
s701, a first duration of time that the first wireless gateway sends without receiving the first sensing data is received.
When the first wireless gateway receives the first sensing data sent by the wireless sensor, the first wireless gateway can not receive the first sensing data for a long time because of shielding between the wireless sensor at some positions and the first wireless gateway or damage of the wireless sensor, and the first wireless gateway records a first duration that the first wireless gateway does not receive the first sensing data and sends the first duration to the hydraulic controller.
S702, receiving a second duration time, which is sent by the second wireless gateway and is not received with the second sensing data.
Similarly, when the second wireless gateway receives the second sensing data sent by the wireless sensor, the second wireless gateway may not receive the second sensing data for a long time because of shielding between the wireless sensor at some positions and the second wireless gateway or damage of the wireless sensor, and the second wireless gateway records a second duration that the second wireless gateway does not receive the second sensing data and sends the second duration to the hydraulic controller.
S703, in response to the first duration and the second duration being greater than or equal to the duration threshold, determining that the wireless sensor is faulty, and sending out a disconnection warning signal.
Setting a duration threshold, and if the obtained first duration and second duration are both greater than or equal to the duration threshold, judging that the wireless sensor fails and sending out a disconnection warning signal. Wherein, disconnected alarm signal is used for warning the staff and overhauls.
And S704, in response to the first duration and/or the second duration being less than the duration threshold, determining that the wireless sensor is in a normal state.
Setting a duration threshold, if at least one of the first duration and the second duration is smaller than the duration threshold, indicating that the sensing data of the wireless sensor is normally received by the wireless gateway, and judging that the wireless sensor is in a normal state no matter whether the normal receiving of the sensing data of the wireless sensor is the main frequency point of the first wireless gateway or the standby frequency point of the second wireless gateway.
According to the method and the device, the first duration, which is sent by the first wireless gateway and is not used for receiving the first sensing data, and the second duration, which is sent by the second wireless gateway and is not used for receiving the second sensing data, are compared with the duration threshold, so that whether the wireless sensor is faulty or not is judged, and the fault can be found out in time when the disconnection duration is large during data transmission.
Fig. 8 is an exemplary embodiment of a fault detection method of a wireless sensor system, as shown in fig. 8, for performing fault detection on a wireless sensor based on first sensing data and second sensing data, including the following steps:
s801, acquiring battery power of a wireless sensor transmitted by a first wireless gateway.
The wireless gateway receives the battery power sent by the wireless sensor and sends the battery power of the wireless sensor to the bracket controller.
And S802, generating an electric quantity warning signal in response to the fact that the electric quantity of the battery is smaller than an electric quantity threshold value, and sending the electric quantity warning signal to a wireless sensor for warning through a wireless gateway.
Setting an electric quantity threshold, if the bracket controller recognizes that the battery electric quantity of the wireless sensor is smaller than the electric quantity threshold, generating an electric quantity alarm signal, and sending the electric quantity alarm signal to the wireless sensor through the wireless gateway for alarm. The electric quantity warning signal is used for reminding a worker to replace a battery of the wireless sensor.
In addition to the above method of sending an electrical quantity warning signal via the stand controller, optionally, a wireless sensor that automatically warns based on its own battery electrical quantity information may also be used.
According to the embodiment of the application, the battery power of the wireless sensor is compared with the power threshold, and if the battery power is smaller, a power warning signal is generated, so that the battery can be replaced in time when the battery power of the wireless sensor is smaller.
Fig. 9 is a fault detection device of a wireless sensor system according to an embodiment of the present application, where the wireless sensor system includes a hydraulic support controller and a plurality of wireless gateways, and each of the wireless gateways manages at least one wireless sensor correspondingly, as shown in fig. 9, a fault detection device 900 of the wireless sensor system includes: a first receiving module 901, a second receiving module 902, and a fault detection module 903, wherein:
the first receiving module 901 is configured to receive first sensing data sent by the first wireless gateway through the communication interface, where the first sensing data is sensing data of a wireless sensor received by a main frequency point of the first wireless gateway.
The second receiving module 902 is configured to receive second sensing data sent by a second wireless gateway associated with the first wireless gateway through the communication interface, where the second sensing data is sensing data of a wireless sensor received by a standby frequency point of the second wireless gateway, and an operating frequency band of the standby frequency point of the second wireless gateway is the same as an operating frequency band of a main frequency point of the first wireless gateway.
The fault detection module 903 is configured to perform fault detection on the wireless sensor based on the first sensing data and the second sensing data.
Further, in the fault detection apparatus 900 of the wireless sensor system, each of the plurality of wireless gateways includes one main frequency point and at least one standby frequency point, where the working frequency bands between the main frequency point and the standby frequency point belonging to the same wireless gateway are different.
Further, in the fault detection apparatus 900 of the wireless sensor system, the working frequency bands of the main frequency points between the wireless gateways adjacent to each other in the plurality of wireless gateways are different.
Further, in the fault detection device 900 of the wireless sensor system, the working frequency bands of the main frequency points of the wireless gateways are allocated according to the order of the wireless gateways in the plurality of wireless gateways.
Further, the fault detection module 903 is further configured to obtain a packet loss rate of the first sensing data and the second sensing data; responding to the packet loss rate of at least one of the first sensing data and the second sensing data to be smaller than or equal to a packet loss threshold value, and judging that the wireless sensor is in a normal state; and responding to the packet loss rate of the first sensing data and the second sensing data to be larger than the packet loss threshold value, and judging that the wireless sensor fails.
Further, the fault detection device 900 of the wireless sensor system is further configured to: receiving a first duration time, which is sent by the first wireless gateway and is not used for receiving the first sensing data; receiving a second duration of time, which is sent by the second wireless gateway and is not received with the second sensing data; and responding to the first duration and the second duration which are greater than or equal to a duration threshold, judging that the wireless sensor fails, and sending out a disconnection warning signal.
Further, the fault detection device 900 of the wireless sensor system is further configured to: and in response to the first duration and/or the second duration being less than a duration threshold, determining that the wireless sensor is in a normal state.
Further, the fault detection device 900 of the wireless sensor system is further configured to: acquiring the battery power of the wireless sensor sent by the first wireless gateway; and generating an electric quantity warning signal in response to the electric quantity of the battery being smaller than an electric quantity threshold value, and sending the electric quantity warning signal to the wireless sensor through the wireless gateway for warning.
Further, fig. 10 is a schematic diagram of a wireless gateway, as shown in fig. 10, including:
the first micro control unit MCU is used for indicating the wireless gateway to communicate with the wireless sensor or the bracket controller. The micro control unit (Microcontroller Unit, MCU), also called as single chip microcomputer or single chip microcomputer, is to properly reduce the frequency and specification of the CPU (Central Process Unit), and integrate peripheral interfaces such as memory (memory), counter (Timer), universal Serial Bus (USB), A/D conversion, etc., even the LCD drive circuit on a single chip to form a chip-level computer for different application occasions to control different combinations.
And the first radio frequency transceiver is used for sending or receiving wireless signals to the wireless sensor managed by the wireless gateway. The number of the first radio frequency transceivers of each wireless gateway is equal to the sum of the number of the main frequency points and the number of the standby frequency points of the wireless gateway. In fig. 10, the wireless gateway has a main frequency point and two standby frequency points, so the number of the first rf transceivers of the wireless gateway is 3.
And the communication interface is used for communicating with the bracket controller on the hydraulic bracket through the wireless gateway, wherein the communication interface can comprise a serial port or a network port.
Further, fig. 11 is a schematic diagram of a wireless sensor, as shown in fig. 11, the wireless sensor includes:
and the second MCU is used for indicating the wireless sensor to communicate with the wireless gateway or for indicating to collect the sensing data of the hydraulic support where the current wireless sensor is located.
And the second radio frequency transceiver is used for sending or receiving wireless signals to the wireless gateway corresponding to the wireless sensor.
And the sensing component is used for collecting sensing data of the hydraulic support where the current wireless sensor is located, wherein the data format of the sensing data comprises two types of analog quantity and digital quantity. The sensing data comprises the posture, the stroke, the pressure and the configuration information of the hydraulic support.
The battery is used for supplying power to the wireless sensor, and the power supply circuit can be in an on state or an off state.
And the radio frequency identification RFID unit is used for reading and/or writing the sensing data of the wireless sensor, wherein the radio frequency identification RFID unit comprises an RFID reader-writer and an RFID transponder. The radio frequency identification (Radio Frequency Identification, RFID) technology is one of automatic identification technologies, non-contact two-way data communication is performed in a radio frequency mode, and an RFID reader is read and written in a radio frequency mode, so that the purposes of identification target and data exchange are achieved.
In order to implement the foregoing embodiments, the embodiments of the present application further provide an electronic device 1200, as shown in fig. 12, where the electronic device 1200 includes: the processor 1201 and the memory 1202 communicatively coupled to the processor, the memory 1202 storing instructions executable by the at least one processor, the instructions being executable by the at least one processor 1201 to implement a fault detection method for a wireless sensor system as shown in the above-described embodiments.
In order to implement the above-described embodiments, the present embodiments also propose a non-transitory computer-readable storage medium storing computer instructions for causing a computer to implement the fault detection method of the wireless sensor system as shown in the above-described embodiments.
In order to implement the above embodiments, the embodiments of the present application also propose a computer program product comprising a computer program which, when executed by a processor, implements the fault detection method of the wireless sensor system as shown in the above embodiments.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
Although embodiments of the present application have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the application, and that variations, modifications, alternatives, and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the application.
Claims (7)
1. A fault detection method of a wireless sensor system, wherein the wireless sensor system comprises a hydraulic support controller and a plurality of wireless gateways, and each wireless gateway correspondingly manages at least one wireless sensor;
the hydraulic support controller receives first sensing data sent by a first wireless gateway through a communication interface, wherein the first sensing data is the sensing data of the wireless sensor received by a main frequency point of the first wireless gateway;
the hydraulic support controller receives second sensing data which is transmitted by a second wireless gateway associated with the first wireless gateway through the communication interface, wherein the second sensing data is the sensing data of the wireless sensor received by a standby frequency point of the second wireless gateway, and the working frequency band of the standby frequency point of the second wireless gateway is the same as the working frequency band of a main frequency point of the first wireless gateway; acquiring packet loss rates of the first sensing data and the second sensing data;
responding to the packet loss rate of at least one of the first sensing data and the second sensing data to be smaller than or equal to a packet loss threshold value, and judging that the wireless sensor is in a normal state;
responding to the packet loss rate of the first sensing data and the second sensing data to be larger than the packet loss threshold value, and judging that the wireless sensor fails;
the method further comprises the steps of:
receiving a first duration time, which is sent by the first wireless gateway and is not used for receiving the first sensing data;
receiving a second duration of time, which is sent by the second wireless gateway and is not received with the second sensing data;
responding to the first duration and the second duration which are greater than or equal to a duration threshold, judging that the wireless sensor fails, and sending out a disconnection warning signal;
and in response to the first duration and/or the second duration being less than a duration threshold, determining that the wireless sensor is in a normal state.
2. The method of claim 1, wherein each of the plurality of wireless gateways comprises one of the primary frequency points and at least one of the backup frequency points, wherein the primary frequency points and the backup frequency points belonging to the same wireless gateway are different in operating frequency band.
3. The method of claim 2, wherein the operating frequency band of the primary frequency point is different between the adjacent ones of the plurality of wireless gateways.
4. The method of claim 3, wherein the operating frequency bands of the primary frequency points of the wireless gateway are allocated in the order of the wireless gateway among the plurality of wireless gateways.
5. The method according to any one of claims 1-4, further comprising:
acquiring the battery power of the wireless sensor sent by the first wireless gateway;
and generating an electric quantity warning signal in response to the electric quantity of the battery being smaller than an electric quantity threshold value, and sending the electric quantity warning signal to the wireless sensor through the wireless gateway for warning.
6. A fault detection device for a wireless sensor system, the wireless sensor system comprising a hydraulic stand controller and a plurality of wireless gateways, each of the wireless gateways correspondingly managing at least one wireless sensor, comprising:
the first receiving module is used for receiving first sensing data sent by a first wireless gateway through a communication interface by the hydraulic support controller, wherein the first sensing data are the sensing data of the wireless sensor received by a main frequency point of the first wireless gateway;
the second receiving module is used for receiving second sensing data which is sent by a second wireless gateway related to the first wireless gateway through the communication interface by the hydraulic support controller, wherein the second sensing data is the sensing data of the wireless sensor received by a standby frequency point of the second wireless gateway, and the working frequency range of the standby frequency point of the second wireless gateway is the same as the working frequency range of a main frequency point of the first wireless gateway;
the fault detection module is used for acquiring packet loss rates of the first sensing data and the second sensing data; responding to the packet loss rate of at least one of the first sensing data and the second sensing data to be smaller than or equal to a packet loss threshold value, and judging that the wireless sensor is in a normal state; responding to the packet loss rate of the first sensing data and the second sensing data to be larger than the packet loss threshold value, and judging that the wireless sensor fails;
the device is further configured to:
receiving a first duration time, which is sent by the first wireless gateway and is not used for receiving the first sensing data;
receiving a second duration of time, which is sent by the second wireless gateway and is not received with the second sensing data;
responding to the first duration and the second duration which are greater than or equal to a duration threshold, judging that the wireless sensor fails, and sending out a disconnection warning signal;
and in response to the first duration and/or the second duration being less than a duration threshold, determining that the wireless sensor is in a normal state.
7. A hydraulic mount, comprising: the fault detection device of a wireless sensor system as claimed in claim 6.
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