Wireless communication method and system applicable to sensors downhole

Abstract

The present application proposes a wireless communication method and system suitable for underground sensors, which relates to the field of coal mining. The present application obtains the wireless gateway corresponding to the support controller on each hydraulic support and sorts all the wireless gateways; configures the first working frequency band for the main frequency point of each wireless gateway according to the order of the wireless gateways; determines the target wireless gateway corresponding to the wireless gateway according to the number of backup frequency points of each wireless gateway and the order of the wireless gateways; and configures the second working frequency band for the backup frequency point of the wireless gateway based on the first working frequency band of the main frequency point of the target wireless gateway. In the present application, the working frequency bands of the wireless sensor group are arranged in sequence without interfering with each other, thus avoiding communication conflicts. In addition, in addition to being able to send sensor data to the corresponding wireless gateway, the wireless sensor can also send it to the corresponding target wireless gateway, thus realizing wireless communication link redundancy and preventing the loss of sensor data due to damage to a certain wireless gateway.

Description

Technical Field

[0001] The present application relates to the field of coal mining, and in particular to a wireless communication method and system suitable for underground sensors. Background Art

[0002] When conducting comprehensive mining operations underground in coal mines, wireless sensors need to communicate with wireless gateways so that the sensor data of the hydraulic support collected by the wireless sensors can be sent to the wireless gateway. This requires allocating frequency bands to the wireless gateway and wireless sensors to achieve communication. Summary of the invention

[0003] The present application aims to solve one of the technical problems in the related art at least to some extent.

[0004] To this end, one purpose of the present application is to propose a wireless communication method suitable for sensors underground, by obtaining the wireless gateway corresponding to the support controller on each hydraulic support, and sorting all the wireless gateways, wherein each of the wireless gateways includes a main frequency point and at least one backup frequency point; according to the order of the wireless gateways, a first working frequency band is configured for the main frequency point of each wireless gateway, wherein the first working frequency bands of the main frequency points of adjacent wireless gateways are different; for each of the wireless gateways, according to the number of backup frequency points of the wireless gateway and the order of the wireless gateways, a target wireless gateway corresponding to the wireless gateway is determined; based on the first working frequency band of the main frequency point of the target wireless gateway, a second working frequency band is configured for the backup frequency point of the wireless gateway.

[0005] The second objective of the present application is to provide a wireless communication system suitable for sensors underground.

[0006] The third objective of the present application is to provide an electronic device.

[0007] A fourth object of the present application is to provide a non-transitory computer-readable storage medium.

[0008] A fifth object of the present application is to provide a computer program product.

[0009] To achieve the above-mentioned purpose, the first aspect embodiment of the present application proposes a wireless communication method suitable for sensors underground, including: obtaining the wireless gateway corresponding to the support controller on each hydraulic support, and sorting all the wireless gateways, wherein each of the wireless gateways includes a main frequency point and at least one backup frequency point; according to the order of the wireless gateways, configuring a first working frequency band for the main frequency point of each wireless gateway, wherein the first working frequency bands of the main frequency points of adjacent wireless gateways are different; for each of the wireless gateways, determining the target wireless gateway corresponding to the wireless gateway according to the number of backup frequency points of the wireless gateway and the order of the wireless gateways; configuring a second working frequency band for the backup frequency point of the wireless gateway based on the first working frequency band of the main frequency point of the target wireless gateway.

[0010] In the present application, each group of wireless sensors with similar distances operates in the first working frequency band of the main frequency point of the wireless gateway. The working frequency bands are arranged in sequence and do not interfere with each other, thus avoiding communication conflicts. In addition, in addition to sending sensor data to the wireless gateway of the main frequency point, the wireless sensor can also send sensor data to the target wireless gateway corresponding to the backup frequency point, thereby realizing wireless communication link redundancy and preventing the loss of sensor data due to damage to a wireless gateway.

[0011] According to one embodiment of the present application, determining the target wireless gateway corresponding to the wireless gateway based on the number of backup frequency points of the wireless gateway and the order of the wireless gateways includes: in response to the wireless gateway including one of the backup frequency points, determining a wireless gateway adjacent to the wireless gateway as the target wireless gateway.

[0012] According to one embodiment of the present application, determining the target wireless gateway corresponding to the wireless gateway based on the number of backup frequency points of the wireless gateway and the order of the wireless gateways includes: in response to the wireless gateway including two of the backup frequency points, determining two wireless gateways adjacent to the wireless gateway as the target wireless gateways.

[0013] According to one embodiment of the present application, determining the target wireless gateway corresponding to the wireless gateway according to the number of backup frequency points of the wireless gateway and the order of the wireless gateways includes: in response to the wireless gateway including N backup frequency points, based on the sequence number of the wireless gateway, selecting N wireless gateways close to the wireless gateway as the target wireless gateway, wherein N is a positive integer greater than or equal to 1.

[0014] According to one embodiment of the present application, configuring the first working frequency band for the main frequency point of each wireless gateway in the order of the wireless gateways includes: obtaining a working frequency range, and dividing the working frequency range to obtain multiple working frequency bands; using the multiple working frequency bands as the first working frequency band, and sequentially allocating them to the main frequency points of the sorted wireless gateways in order from low to high.

[0015] According to an embodiment of the present application, dividing the working frequency range to obtain multiple working frequency bands includes: dividing the working frequency range at equal intervals; or dividing the working frequency range in an increasing or decreasing manner according to a set step size.

[0016] According to one embodiment of the present application, the method also includes: in response to the number of the multiple first working frequency bands being less than the number of the wireless gateways, and when the multiple first working frequency bands are allocated, the main frequency points corresponding to the remaining wireless gateways are allocated in sequence starting with a first working frequency band different from the previously allocated first working frequency band.

[0017] To achieve the above-mentioned purpose, the second aspect embodiment of the present application proposes a wireless communication system suitable for sensors underground, including: a processor, at least one wireless gateway and at least one wireless sensor group, wherein the wireless sensor group includes one or more wireless sensors; a processor, used to obtain the wireless gateway corresponding to the support controller on each hydraulic support, and sort all the wireless gateways, wherein each of the wireless gateways includes a main frequency point and at least one backup frequency point; according to the order of the wireless gateways, a first working frequency band is configured for the main frequency point of each wireless gateway, wherein the first working frequency bands of the main frequency points of adjacent wireless gateways are different; for each of the wireless gateways, a target wireless gateway corresponding to the wireless gateway is determined according to the number of backup frequency points of the wireless gateway and the order of the wireless gateways; a second working frequency band is configured for the backup frequency point of the wireless gateway based on the first working frequency band of the main frequency point of the target wireless gateway.

[0018] According to one embodiment of the present application, the wireless gateway includes: a first microcontroller unit MCU, used to instruct the wireless gateway to communicate with the wireless sensor or the bracket controller; a first radio frequency transceiver, used to send or receive wireless signals to the wireless sensor it manages, wherein there are at least two first radio frequency transceivers; and a communication interface, used to communicate with the bracket controller on the hydraulic support.

[0019] According to one embodiment of the present application, the wireless sensor includes: a second MCU, used to instruct the wireless sensor to communicate with the wireless gateway, or to instruct to collect the sensor data of the hydraulic support where the wireless sensor is currently located; a second RF transceiver, used to send or receive wireless signals to the corresponding wireless gateway; a sensing component, used to collect the sensor data of the hydraulic support where the wireless sensor is currently located, wherein the sensor data includes the posture, stroke, pressure and configuration information of the hydraulic support; a battery, used to power the wireless sensor; a radio frequency identification RFID unit, used to read and / or write the sensor data of the wireless sensor, wherein the radio frequency identification RFID unit includes an RFID reader and an RFID transponder.

[0020] To achieve the above-mentioned purpose, the third aspect embodiment of the present application proposes 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 to implement the wireless communication method suitable for downhole sensors as described in the first aspect embodiment of the present application.

[0021] To achieve the above-mentioned purpose, the fourth aspect embodiment of the present application proposes a non-transitory computer-readable storage medium storing computer instructions, wherein the computer instructions are used to implement the wireless communication method suitable for downhole sensors as described in the first aspect embodiment of the present application.

[0022] To achieve the above-mentioned purpose, the fifth aspect of the present application proposes a computer program product, including a computer program, which, when executed by a processor, implements the wireless communication method for sensors in the well as described in the first aspect of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of a wireless communication method suitable for underground sensors according to an embodiment of the present application.

[0024] Figure 2 It is a schematic diagram of the configuration and arrangement of hydraulic supports according to an embodiment of the present application.

[0025] Figure 3 It is a schematic diagram of a wireless gateway managing wireless sensors according to an embodiment of the present application.

[0026] Figure 4 This is a schematic diagram of configuring a first working frequency band for a main frequency point of each wireless gateway according to an embodiment of the present application.

[0027] Figure 5It is a schematic diagram of a wireless communication method suitable for underground sensors when each wireless gateway includes a backup frequency point in an embodiment of the present application.

[0028] Figure 6 It is a schematic diagram of a wireless communication method suitable for underground sensors when each wireless gateway includes a backup frequency point in another embodiment of the present application.

[0029] Figure 7 It is a schematic diagram of a wireless communication method suitable for underground sensors when each wireless gateway includes two backup frequency points in an embodiment of the present application.

[0030] Figure 8 It is a schematic diagram of a wireless communication method suitable for underground sensors when each wireless gateway includes two backup frequency points according to another embodiment of the present application.

[0031] Fig. 9 It is a schematic diagram of a wireless communication method suitable for sensors underground when each wireless gateway includes N backup frequency points according to an embodiment of the present application.

[0032] Fig.10 It is an overall schematic diagram of a wireless communication method suitable for underground sensors according to an embodiment of the present application.

[0033] Fig.11 It is a schematic diagram of a wireless communication system suitable for underground sensors according to an embodiment of the present application.

[0034] Fig.12 It is a schematic diagram of a wireless gateway according to an embodiment of the present application.

[0035] Fig.13 is a schematic diagram of a wireless sensor according to an embodiment of the present application.

[0036] Fig.14 It is a schematic diagram of an electronic device according to an embodiment of the present application. DETAILED DESCRIPTION

[0037] Embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limiting the present application.

[0038] Figure 1 This is an exemplary implementation of a wireless communication method for a sensor downhole proposed in an embodiment of the present application, such as Figure 1 As shown, the wireless communication method applicable to the sensor downhole comprises the following steps:

[0039] S101, obtaining the wireless gateway corresponding to the support controller on each hydraulic support, and sorting all the wireless gateways, wherein each wireless gateway includes a main frequency point and at least one backup frequency point.

[0040] Figure 2 Each vertical column in the figure can be regarded as the configuration installed on a hydraulic support, such as Figure 2 As shown, in order to control the posture of the hydraulic support, a support controller is installed on each hydraulic support, and the support controllers are numbered according to the arrangement order of the hydraulic support when working. In order to collect the current status information of each hydraulic support, a wireless sensor is installed on each hydraulic support, wherein the wireless sensor installed on each hydraulic support can be one or more. Figure 2 In the example, four wireless sensors are installed on each hydraulic support. Optionally, the wireless sensor can be a posture sensor, a pressure sensor, a travel sensor, or other types of sensors.

[0041] In addition to the above-mentioned support controller and wireless sensor, a wireless gateway is also installed on the hydraulic support to realize the communication of wireless sensor data. Figure 2 As shown, in order to save costs, a wireless gateway is usually installed on every few hydraulic supports. Each wireless gateway can manage the wireless sensors installed on the hydraulic support where it is located and on several hydraulic supports near it. Each support controller has its corresponding wireless gateway.

[0042] According to the arrangement order of the hydraulic supports, the wireless gateways are numbered, where each wireless gateway has its corresponding wireless sensor group. According to the numbering order of the wireless gateways, all the wireless sensor groups are sorted. The arrangement order of the wireless gateways is the same as the order of the wireless sensor groups they correspond to. For example, wireless gateway 1 corresponds to the first wireless sensor group. Figure 3 For example, if a wireless gateway is installed every two hydraulic supports, each wireless gateway manages all the wireless sensors on the hydraulic support where it is located and on the hydraulic supports to the left and right of it. Figure 3 For example, 4 wireless sensors are installed on each hydraulic support, that is, each wireless gateway manages 12 wireless sensors, and these 12 wireless sensors are regarded as a group.

[0043] In order to achieve wireless communication link redundancy, a main frequency point and at least one backup frequency point are set for each wireless gateway. Among them, the wireless sensors in the wireless sensor group managed by each wireless gateway all work in the working frequency band corresponding to the main frequency point of the wireless gateway.

[0044] S102: configuring a first working frequency band for a main frequency point of each wireless gateway according to the order of the wireless gateways, wherein the first working frequency bands of main frequency points of adjacent wireless gateways are different.

[0045] The preset minimum operating frequency and maximum operating frequency of the wireless gateway are obtained, and the total operating frequency range of the wireless gateway is divided to obtain multiple operating frequency bands with smaller frequency ranges. Optionally, when the total operating frequency range of the wireless gateway is divided, equal interval division, incremental division, or decreasing division can be adopted.

[0046] According to the arrangement order of the wireless gateways, the obtained multiple working frequency bands with smaller frequency ranges are used as the first working frequency bands, and are sequentially allocated to the main frequency point of each wireless gateway from low to high, and the first working frequency bands of the main frequency points of adjacent wireless gateways are different. Among them, the wireless sensor group managed by each wireless gateway works in a working frequency band consistent with the first working frequency band of the main frequency point of the wireless gateway. Among them, the working frequency bands of the wireless sensors in the wireless sensor group are the same.

[0047] S103: For each wireless gateway, determine a target wireless gateway corresponding to the wireless gateway according to the number of backup frequency points of the wireless gateway and the order of the wireless gateways.

[0048] For wireless communication link redundancy, a backup frequency point is set for each wireless gateway, and the number of backup frequency points can be one or more. According to the number of backup frequency points of the wireless gateway and the order of the wireless gateways, a corresponding number of wireless gateways adjacent to the wireless gateway are determined as target wireless gateways. The number of target wireless gateways corresponding to each wireless gateway is the same as the number of backup frequency points of the wireless gateway.

[0049] S104: configuring a second working frequency band for a backup frequency point of the wireless gateway based on the first working frequency band of the primary frequency point of the target wireless gateway.

[0050] As a feasible method, if there is only one target wireless gateway corresponding to each wireless gateway obtained, the first working frequency band of the main frequency point of the target wireless gateway is configured to the backup frequency point of the wireless gateway as the second working frequency band corresponding to the backup frequency point of the wireless gateway.

[0051] As another feasible method, if there are multiple target wireless gateways corresponding to each acquired wireless gateway, the first working frequency bands of the main frequency points of the multiple target wireless gateways are respectively configured to the multiple backup frequency points of the wireless gateway as the second working frequency bands corresponding to the multiple backup frequency points of the wireless gateway.

[0052] It should be noted that when the wireless sensor communicates with the wireless gateway, each wireless sensor not only sends the sensing data to the wireless gateway at the primary frequency, but also sends the sensing data to the target wireless gateway corresponding to the backup frequency to prevent the loss of sensing data due to damage to a wireless gateway.

[0053] The embodiment of the present application proposes a wireless communication method suitable for sensors underground, by obtaining the wireless gateway corresponding to the support controller on each hydraulic support, and sorting all the wireless gateways, wherein each wireless gateway includes a main frequency point and at least one backup frequency point; according to the order of the wireless gateways, the first working frequency band of the main frequency point of each wireless gateway is configured, wherein the first working frequency bands of the main frequency points of adjacent wireless gateways are different; for each wireless gateway, according to the number of backup frequency points of the wireless gateway and the order of the wireless gateways, the target wireless gateway corresponding to the wireless gateway is determined; based on the first working frequency band of the main frequency point of the target wireless gateway, the second working frequency band is configured for the backup frequency point of the wireless gateway. In the present application, each group of wireless sensor groups with similar distances works under the first working frequency band of the main frequency point of the wireless gateway, and the working frequency bands are arranged in sequence without interfering with each other, thereby avoiding communication conflicts. In addition, in addition to being able to send sensor data to the wireless gateway of the main frequency point, the wireless sensor can also send sensor data to the target wireless gateway corresponding to the backup frequency point, thereby realizing wireless communication link redundancy and preventing sensor data loss caused by damage to a wireless gateway.

[0054] Figure 4 This is an exemplary wireless communication method for sensors in underground wells proposed in this application, such as Figure 4 As shown, based on the above embodiment, according to the order of the wireless gateways, configuring the first working frequency band for the main frequency point of each wireless gateway includes the following steps:

[0055] S401, obtaining a working frequency range, and dividing the working frequency range to obtain multiple working frequency bands.

[0056] As a feasible method, when dividing the working frequency range, the working frequency range can be divided into equal intervals. For example, if the set working frequency range is 660-700MHz and the set interval is 1MHz, the working frequency range can be divided into a working frequency band every 1MHz interval, which is 660-661MHz, 661-662MHz...669-700MHz.

[0057] As another achievable method, when dividing the working frequency range, the working frequency range can be divided incrementally according to the set step size. For example, if the set working frequency range is 660-700MHz, and the set incremental step size is 2MHz, the interval of each working frequency band divided by the working frequency range can be increased by 2MHz, which is 660-662MHz, 662-666MHz, 666-672MHz, etc.

[0058] As another achievable method, when dividing the working frequency range, the working frequency range can be divided in a decreasing manner according to a set step size. For example, if the set working frequency range is 660-700MHz, and the set decreasing step size is 2MHz, the interval of each working frequency band divided by the working frequency range can be reduced by 2MHz, which is 660-670MHz, 670-678MHz, 678-684MHz, etc.

[0059] S402: Use multiple working frequency bands as first working frequency bands, and sequentially allocate them to the main frequency points of the sorted wireless gateways in order from low to high.

[0060] The multiple working frequency bands obtained above are used as the first working frequency bands, and are allocated to the main frequency points of the sorted wireless gateways in order from low to high, and the working frequency bands of all wireless sensors in the wireless sensor group managed by each wireless gateway are consistent with the first working frequency band of the main frequency point of the wireless gateway. For example, if multiple first working frequency bands are obtained by the above-mentioned equal-interval division method, then Figure 3 The first working frequency band of the main frequency point of wireless gateway 1 is 660-661 MHz, and the working frequency bands of all wireless sensors in the first group of wireless sensor groups managed by it are consistent with the first working frequency band of the main frequency point of wireless gateway 1, which is also 660-661 MHz; the first working frequency band of the main frequency point of wireless gateway 2 is 661-662 MHz, and the working frequency bands of all wireless sensors in the second group of wireless sensor groups managed by it are consistent with the first working frequency band of the main frequency point of wireless gateway 2, which is also 661-662 MHz; the first working frequency band of the main frequency point of wireless gateway 3 is 662-663 MHz, and the working frequency bands of all wireless sensors in the third group of wireless sensor groups managed by it are consistent with the first working frequency band of the main frequency point of wireless gateway 3, which is also 662-663 MHz; the first working frequency band of the main frequency point of wireless gateway 4 is 663-664 MHz, and the working frequency bands of all wireless sensors in the fourth group of wireless sensor groups managed by it are consistent with the first working frequency band of the main frequency point of wireless gateway 4, which is also 663-664 MHz.

[0061] If the number of the plurality of first working frequency bands is less than the number of wireless gateways, when all the first working frequency bands are allocated in sequence, the main frequency points corresponding to the remaining wireless gateways are allocated in sequence starting with a working frequency band different from the first working frequency band allocated previously. Optionally, the plurality of first working frequency bands obtained above may be allocated in sequence from low to high to the main frequency points corresponding to the remaining wireless gateways.

[0062] The embodiment of the present application divides the working frequency range to obtain multiple working frequency bands, and allocates the multiple working frequency bands as the first working frequency band to the main frequency points of the sorted wireless gateway in order from low to high. Each wireless sensor group with a close distance works in a different frequency band, and the working frequency bands are arranged in sequence without interfering with each other, thereby avoiding communication conflicts.

[0063] Figure 5 is an exemplary implementation of a wireless communication method for a sensor downhole proposed in this application, such as Figure 5 As shown, when each wireless gateway includes a backup frequency point, based on the above embodiment, the wireless communication method applicable to the sensor downhole includes the following steps:

[0064] S501, obtaining the wireless gateway corresponding to the support controller on each hydraulic support, and sorting all the wireless gateways, wherein each wireless gateway includes a main frequency point and at least one backup frequency point.

[0065] As for step S501, the above embodiment has been introduced in detail, and will not be described again here.

[0066] S502: configuring a first working frequency band for a main frequency point of each wireless gateway according to the order of the wireless gateways, wherein the first working frequency bands of the main frequency points of adjacent wireless gateways are different.

[0067] As for step S502, the above embodiment has been introduced in detail, and will not be described again here.

[0068] S503: In response to the wireless gateway including a backup frequency point, a wireless gateway adjacent to the wireless gateway is determined as a target wireless gateway.

[0069] Exemplarily, if each wireless gateway includes only one backup frequency point, a wireless gateway adjacent to the wireless gateway is determined as the target wireless gateway. The target wireless gateway corresponding to the wireless gateway may be the wireless gateway adjacent to the left of the wireless gateway or the wireless gateway adjacent to the right of the wireless gateway.

[0070] Figure 6 A partial schematic diagram when each wireless gateway includes a backup frequency point and its corresponding target wireless gateway is the wireless gateway adjacent to the right of the wireless gateway, such as Figure 6 As shown, the wireless gateway adjacent to the right of each wireless gateway is used as the target wireless gateway corresponding to the wireless gateway, the target wireless gateway corresponding to wireless gateway 1 is wireless gateway 2, the target wireless gateway corresponding to wireless gateway 2 is wireless gateway 3, the target wireless gateway corresponding to wireless gateway 3 is wireless gateway 4, the target wireless gateway corresponding to wireless gateway 4 is wireless gateway 5, and the method for determining the target wireless gateways corresponding to the remaining wireless gateways is similar, which will not be repeated here.

[0071] S504: Configure a second working frequency band for the backup frequency point of the wireless gateway based on the first working frequency band of the primary frequency point of the target wireless gateway.

[0072] The first working frequency band of the main frequency point of the target wireless gateway corresponding to each wireless gateway is configured to the backup frequency point of the wireless gateway as the second working frequency band corresponding to the backup frequency point of the wireless gateway. Figure 6 As shown, since wireless gateway 2 is the target wireless gateway corresponding to wireless gateway 1, the first working frequency band of the main frequency point of wireless gateway 2 is configured to the backup frequency point of wireless gateway 1 as the second working frequency band corresponding to the backup frequency point of wireless gateway 1.

[0073] Similarly, since wireless gateway 3 is the target wireless gateway corresponding to wireless gateway 2, the first working frequency band of the main frequency point of wireless gateway 3 is configured to the backup frequency point of wireless gateway 2 as the second working frequency band corresponding to the backup frequency point of wireless gateway 2. Since wireless gateway 4 is the target wireless gateway corresponding to wireless gateway 3, the first working frequency band of the main frequency point of wireless gateway 4 is configured to the backup frequency point of wireless gateway 3 as the second working frequency band corresponding to the backup frequency point of wireless gateway 3. Since wireless gateway 5 is the target wireless gateway corresponding to wireless gateway 4, the first working frequency band of the main frequency point of wireless gateway 5 is configured to the backup frequency point of wireless gateway 4 as the second working frequency band corresponding to the backup frequency point of wireless gateway 4. The method for determining the second working frequency band of the backup frequency points of the remaining wireless gateways is similar and will not be repeated here.

[0074] The embodiment of the present application equips the backup frequency point of the wireless gateway with the first working frequency band of the main frequency point of the target wireless gateway corresponding to the wireless gateway, so that the wireless sensor can not only send the sensing data to the wireless gateway of the main frequency point, but also send the sensing data to the target wireless gateway corresponding to the backup frequency point, thereby realizing wireless communication link redundancy and preventing the loss of sensing data due to damage to a certain wireless gateway.

[0075] Figure 7 is an exemplary implementation of a wireless communication method for a sensor downhole proposed in this application, such as Figure 7 As shown, when each wireless gateway includes two backup frequency points, based on the above embodiment, the wireless communication method suitable for the sensor downhole includes the following steps:

[0076] S701, obtaining the wireless gateway corresponding to the support controller on each hydraulic support, and sorting all the wireless gateways, wherein each wireless gateway includes a main frequency point and at least one backup frequency point.

[0077] Regarding step S701, the above embodiment has been introduced in detail and will not be described again here.

[0078] S702: Configure a first working frequency band for a main frequency point of each wireless gateway in the order of the wireless gateways, wherein the first working frequency bands of main frequency points of adjacent wireless gateways are different.

[0079] As for step S702, the above embodiment has already been described in detail, and will not be described again here.

[0080] S703: In response to the wireless gateway including two backup frequency points, two wireless gateways adjacent to the wireless gateway are determined as target wireless gateways.

[0081] Exemplarily, if each wireless gateway includes two backup frequency points, two wireless gateways adjacent to the wireless gateway are determined as target wireless gateways.

[0082] Figure 8 A schematic diagram is provided when each wireless gateway includes two backup frequency points and the corresponding target wireless gateways are two wireless gateways adjacent to the wireless gateway, as shown in FIG. Figure 8 As shown, the two wireless gateways adjacent to each wireless gateway are used as the target wireless gateways corresponding to the wireless gateway, that is, the target wireless gateways corresponding to wireless gateway 2 are wireless gateway 1 and wireless gateway 3, the target wireless gateways corresponding to wireless gateway 3 are wireless gateway 2 and wireless gateway 4, the target wireless gateways corresponding to wireless gateway 4 are wireless gateway 3 and wireless gateway 5, and the target wireless gateways corresponding to the remaining wireless gateways are determined in a similar manner and will not be described in detail here. Among them, since wireless gateway 1 has only one adjacent wireless gateway, the target wireless gateway corresponding to wireless gateway 1 can be wireless gateway 2 and another self-set target wireless gateway, or wireless gateway 1 can only determine wireless gateway 2 as its corresponding target wireless gateway. In the embodiment of the present application, the target wireless gateway corresponding to wireless gateway 1 is determined to be wireless gateway 2 and wireless gateway N.

[0083] S704: Configure a second working frequency band for the backup frequency point of the wireless gateway based on the first working frequency band of the primary frequency point of the target wireless gateway.

[0084] The first working frequency bands of the main frequency points of the two target wireless gateways corresponding to each wireless gateway are respectively configured to the backup frequency point 1 and the backup frequency point 2 of the wireless gateway as the second working frequency bands corresponding to the backup frequency point 1 and the backup frequency point 2 of the wireless gateway. Figure 8As shown, since wireless gateway 2 and wireless gateway N are the target wireless gateways corresponding to wireless gateway 1, the first working frequency bands of the main frequency points of wireless gateway 2 and wireless gateway N are respectively configured to the backup frequency point 1 and the backup frequency point 2 of wireless gateway 1, as the second working frequency bands corresponding to the backup frequency point 1 and the backup frequency point 2 of wireless gateway 1.

[0085] Similarly, since wireless gateway 1 and wireless gateway 3 are the target wireless gateways corresponding to wireless gateway 2, the first working frequency bands of the main frequency points of wireless gateway 1 and wireless gateway 3 are respectively configured to backup frequency point 1 and backup frequency point 2 of wireless gateway 2 as the second working frequency bands corresponding to backup frequency point 1 and backup frequency point 2 of wireless gateway 2. Since wireless gateway 2 and wireless gateway 4 are the target wireless gateways corresponding to wireless gateway 3, the first working frequency bands of the main frequency points of wireless gateway 2 and wireless gateway 4 are respectively configured to backup frequency point 1 and backup frequency point 2 of wireless gateway 3 as the second working frequency bands corresponding to backup frequency point 1 and backup frequency point 2 of wireless gateway 3. The method for determining the second working frequency bands of backup frequency point 1 and backup frequency point 2 of the remaining wireless gateways is similar and will not be repeated here.

[0086] The embodiment of the present application equips the backup frequency point of the wireless gateway with the first working frequency band of the main frequency point of the target wireless gateway corresponding to the wireless gateway, so that the wireless sensor can not only send the sensing data to the wireless gateway of the main frequency point, but also send the sensing data to the target wireless gateway corresponding to the backup frequency point, thereby realizing wireless communication link redundancy and preventing the loss of sensing data due to damage to a certain wireless gateway.

[0087] Fig. 9 is an exemplary implementation of a wireless communication method for a sensor downhole proposed in this application, such as Fig. 9 As shown, when each wireless gateway includes N backup frequency points, based on the above embodiment, the wireless communication method for the sensor in the well includes the following steps:

[0088] S901, obtaining the wireless gateway corresponding to the support controller on each hydraulic support, and sorting all the wireless gateways, wherein each wireless gateway includes a main frequency point and at least one backup frequency point.

[0089] Regarding step S901, the above embodiment has been introduced in detail and will not be described again here.

[0090] S902: Configure a first working frequency band for a main frequency point of each wireless gateway according to the order of the wireless gateways, wherein the first working frequency bands of main frequency points of adjacent wireless gateways are different.

[0091] As for step S902, the above embodiment has already been introduced in detail, and will not be described again here.

[0092] S903: In response to the wireless gateway including N backup frequency points, based on the sequence number of the wireless gateway, select N wireless gateways close to the wireless gateway as target wireless gateways.

[0093] Exemplarily, if each wireless gateway includes N backup frequency points, based on the sequence number of the wireless gateway, N wireless gateways close to the wireless gateway are selected as target wireless gateways.

[0094] As a feasible approach, when N wireless gateways close to any wireless gateway are selected as target wireless gateways, N / 2 wireless gateways can be selected before and after the wireless gateway as target wireless gateways.

[0095] As another feasible method, when selecting N wireless gateways close to any wireless gateway as the target wireless gateway, a certain number of wireless gateways can be selected in front of and behind the wireless gateway as the target wireless gateways, wherein the total number of wireless gateways selected in front of and behind the wireless gateway must be N.

[0096] S904: Configure a second working frequency band for the backup frequency point of the wireless gateway based on the first working frequency band of the primary frequency point of the target wireless gateway.

[0097] The first working frequency bands of the main frequency points of the N target wireless gateways corresponding to each wireless gateway are respectively configured to the backup frequency points 1 to N of the wireless gateway as the second working frequency bands corresponding to the backup frequency points 1 to N of the wireless gateway.

[0098] The embodiment of the present application equips the backup frequency point of the wireless gateway with the first working frequency band of the main frequency point of the target wireless gateway corresponding to the wireless gateway, so that the wireless sensor can not only send the sensing data to the wireless gateway of the main frequency point, but also send the sensing data to the target wireless gateway corresponding to the backup frequency point, thereby realizing wireless communication link redundancy and preventing the loss of sensing data due to damage to a certain wireless gateway.

[0099] Fig.10 is a general schematic diagram of an exemplary wireless communication method for sensors downhole proposed in this application, such as Fig.10 As shown, the wireless communication method applicable to the sensor downhole comprises the following steps:

[0100] S1001, obtaining the wireless gateway corresponding to the support controller on each hydraulic support, and sorting all the wireless gateways, wherein each wireless gateway includes a main frequency point and at least one backup frequency point.

[0101] S1002: Acquire a working frequency range, and divide the working frequency range to obtain multiple working frequency bands.

[0102] S1003: Use multiple working frequency bands as first working frequency bands, and sequentially allocate them to the main frequency points of the sorted wireless gateways in order from low to high, wherein the first working frequency bands of the main frequency points of adjacent wireless gateways are different.

[0103] Regarding steps S1001 to S1003, the above embodiment has been introduced in detail and will not be described again here.

[0104] S1004: In response to the wireless gateway including a backup frequency point, a wireless gateway adjacent to the wireless gateway is determined as a target wireless gateway.

[0105] S1005: In response to the wireless gateway including two backup frequency points, two wireless gateways adjacent to the wireless gateway are determined as target wireless gateways.

[0106] S1006: In response to the wireless gateway including N backup frequency points, based on the sequence number of the wireless gateway, select N wireless gateways close to the wireless gateway as target wireless gateways.

[0107] S1007: Configure a second working frequency band for the backup frequency point of the wireless gateway based on the first working frequency band of the primary frequency point of the target wireless gateway.

[0108] Regarding steps S1004 to S1007, the above embodiment has been introduced in detail and will not be described again here.

[0109] The embodiment of the present application proposes a wireless communication method suitable for sensors underground, by obtaining the wireless gateway corresponding to the support controller on each hydraulic support, and sorting all the wireless gateways, wherein each wireless gateway includes a main frequency point and at least one backup frequency point; according to the order of the wireless gateways, the first working frequency band of the main frequency point of each wireless gateway is configured, wherein the first working frequency bands of the main frequency points of adjacent wireless gateways are different; for each wireless gateway, according to the number of backup frequency points of the wireless gateway and the order of the wireless gateways, the target wireless gateway corresponding to the wireless gateway is determined; based on the first working frequency band of the main frequency point of the target wireless gateway, the second working frequency band is configured for the backup frequency point of the wireless gateway. In the present application, each group of wireless sensor groups with similar distances works under the first working frequency band of the main frequency point of the wireless gateway, and the working frequency bands are arranged in sequence without interfering with each other, thereby avoiding communication conflicts. In addition, in addition to being able to send sensor data to the wireless gateway of the main frequency point, the wireless sensor can also send sensor data to the target wireless gateway corresponding to the backup frequency point, thereby realizing wireless communication link redundancy and preventing sensor data loss caused by damage to a wireless gateway.

[0110] Fig.11 This application proposes a wireless communication system suitable for sensors downhole, such as Fig.11As shown, the wireless communication system suitable for sensors downhole includes: a processor, at least one wireless gateway and at least one wireless sensor group, wherein the wireless sensor group includes one or more wireless sensors. Fig.11 The processor is used to obtain the wireless gateway corresponding to the support controller on each hydraulic support, and sort all the wireless gateways, wherein each wireless gateway includes a main frequency point and at least one backup frequency point; according to the order of the wireless gateways, the first working frequency band of the main frequency point of each wireless gateway is configured, wherein the first working frequency bands of the main frequency points of adjacent wireless gateways are different; for each wireless gateway, according to the number of backup frequency points of the wireless gateway and the order of the wireless gateways, the target wireless gateway corresponding to the wireless gateway is determined; based on the first working frequency band of the main frequency point of the target wireless gateway, the second working frequency band is configured for the backup frequency point of the wireless gateway.

[0111] Further, Fig.12 is a schematic diagram of a wireless gateway, such as Fig.12 As shown, the wireless gateway includes:

[0112] The first microcontroller unit MCU is used to instruct the wireless gateway to communicate with the wireless sensor or bracket controller. Among them, the microcontroller unit (MCU), also known as a single-chip microcomputer or single-chip microcomputer, is a chip-level computer that appropriately reduces the frequency and specifications of the central processing unit (CPU), and integrates memory, timer, universal serial bus (USB), A / D conversion and other peripheral interfaces, and even liquid crystal display drive circuits on a single chip to form a chip-level computer, which performs different combination controls for different application scenarios.

[0113] The first radio frequency transceiver is used to send or receive wireless signals to the wireless sensors managed by the wireless gateway. The number of the first radio frequency transceivers of any wireless gateway is equal to the sum of the number of the main frequency points and the number of the backup frequency points of the wireless gateway. Fig.12 For example, a wireless gateway has one main frequency point and two backup frequency points, so the number of the first RF transceivers of the wireless gateway is three.

[0114] The communication interface is used for the wireless gateway to communicate with the support controller on the hydraulic support, wherein the communication interface may include a serial port or a network port.

[0115] Further, Fig.13 is a schematic diagram of a wireless sensor, such as Fig.13 As shown, the wireless sensor includes:

[0116] The second MCU is used to instruct the wireless sensor to communicate with the wireless gateway, or to instruct to collect sensor data of the hydraulic support where the current wireless sensor is located.

[0117] The second radio frequency transceiver is used to send or receive a wireless signal to a wireless gateway corresponding to the wireless sensor.

[0118] The sensing component is used to collect the sensing data of the hydraulic support where the current wireless sensor is located, wherein the data format of the sensing data includes two types: analog quantity and digital quantity. The sensing data includes the posture, stroke, pressure and configuration information of the hydraulic support.

[0119] The battery is used to power the wireless sensor, and the power supply circuit can be in an on state or a off state.

[0120] The RFID unit is used to read and / or write the sensor data of the wireless sensor, wherein the RFID unit includes an RFID reader and an RFID transponder. Among them, the Radio Frequency Identification (RFID) technology is a kind of automatic identification technology, which uses radio frequency to perform non-contact two-way data communication, and uses radio frequency to read and write the RFID reader, so as to achieve the purpose of identifying the target and exchanging data.

[0121] In order to implement the above embodiment, the present application embodiment also proposes an electronic device 1400, such as Fig.14 As shown, the electronic device 1400 includes: a processor 1401 and a memory 1402 communicatively connected to the processor, the memory 1402 stores instructions executable by at least one processor, and the instructions are executed by at least one processor 1401 to implement a wireless communication method for sensors in underground wells as in the first aspect of the embodiment of the present application.

[0122] In order to implement the above embodiments, the embodiments of the present application also propose a non-transitory computer-readable storage medium storing computer instructions, wherein the computer instructions are used to enable a computer to implement a wireless communication method for sensors in underground wells as in the first aspect of the embodiment of the present application.

[0123] In order to implement the above embodiments, the embodiments of the present application also propose a computer program product, including a computer program, which, when executed by a processor, implements a wireless communication method for sensors in a well as the first embodiment of the present application.

[0124] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0125] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0126] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A wireless communication method for a sensor in a well, characterized in that: include: Obtaining the wireless gateway corresponding to the support controller on each hydraulic support, and sorting all the wireless gateways, wherein each of the wireless gateways includes a main frequency point and at least one backup frequency point; According to the order of the wireless gateways, configure a first working frequency band for the main frequency point of each wireless gateway, wherein the first working frequency bands of the main frequency points of adjacent wireless gateways are different; For each of the wireless gateways, determining a target wireless gateway corresponding to the wireless gateway according to the number of backup frequency points of the wireless gateway and the order of the wireless gateways; Based on the first working frequency band of the main frequency point of the target wireless gateway, a second working frequency band is configured for the backup frequency point of the wireless gateway as the second working frequency bands corresponding to the multiple backup frequency points of the wireless gateway; The step of determining a target wireless gateway corresponding to the wireless gateway according to the number of backup frequency points of the wireless gateway and the order of the wireless gateways includes: In response to the wireless gateway including N of the backup frequency points, based on the sequence number of the wireless gateway, N wireless gateways close to the wireless gateway are selected as the target wireless gateway, where N is a positive integer greater than or equal to 1.

2. The method according to claim 1, characterized in that The step of determining a target wireless gateway corresponding to the wireless gateway according to the number of backup frequency points of the wireless gateway and the order of the wireless gateways includes: In response to the wireless gateway including one of the backup frequency points, a wireless gateway adjacent to the wireless gateway is determined as the target wireless gateway.

3. The method according to claim 1, characterized in that The step of determining a target wireless gateway corresponding to the wireless gateway according to the number of backup frequency points of the wireless gateway and the order of the wireless gateways includes: In response to the wireless gateway including the two backup frequency points, two wireless gateways adjacent to the wireless gateway are determined as the target wireless gateways.

4. The method according to any one of claims 1 to 3, characterized in that: The configuring a first working frequency band for the primary frequency point of each wireless gateway according to the order of the wireless gateways includes: Acquire an operating frequency range, and divide the operating frequency range to obtain multiple operating frequency bands; The multiple working frequency bands are used as first working frequency bands, and are allocated to the main frequency points of the sorted wireless gateways in order from low to high.

5. The method according to claim 4, characterized in that The step of dividing the operating frequency range to obtain a plurality of operating frequency bands includes: Dividing the operating frequency range into equal intervals; or, The operating frequency range is divided into increasing or decreasing steps according to a set step size.

6. The method according to claim 5, characterized in that The method further comprises: In response to the number of the multiple first working frequency bands being less than the number of the wireless gateways, and when the multiple first working frequency bands are allocated, the main frequency points corresponding to the remaining wireless gateways are allocated in sequence starting with a first working frequency band different from the previously allocated first working frequency band.

7. A wireless communication system for sensors underground, characterized in that: The method comprises: a processor, at least one wireless gateway and at least one wireless sensor group, wherein the wireless sensor group comprises one or more wireless sensors; A processor, configured to obtain a wireless gateway corresponding to a support controller on each hydraulic support, and to sort all the wireless gateways, wherein each of the wireless gateways includes a main frequency point and at least one backup frequency point; according to the order of the wireless gateways, a first working frequency band is configured for the main frequency point of each wireless gateway, wherein the first working frequency bands of the main frequency points of adjacent wireless gateways are different; for each wireless gateway, according to the number of backup frequency points of the wireless gateway and the order of the wireless gateways, a target wireless gateway corresponding to the wireless gateway is determined; based on the first working frequency band of the main frequency point of the target wireless gateway, a second working frequency band is configured for the backup frequency point of the wireless gateway as the second working frequency band corresponding to each of the multiple backup frequency points of the wireless gateway; wherein, determining the target wireless gateway corresponding to the wireless gateway according to the number of backup frequency points of the wireless gateway and the order of the wireless gateway includes: in response to the wireless gateway including N backup frequency points, based on the sequence number of the wireless gateway, N wireless gateways close to the wireless gateway are selected as the target wireless gateway, wherein N is a positive integer greater than or equal to 1.

8. The system according to claim 7, characterized in that The wireless gateway comprises: A first micro control unit MCU, used for instructing the wireless gateway to communicate with the wireless sensor or the bracket controller; A first radio frequency transceiver, used to send or receive a wireless signal to the wireless sensor managed by the first radio frequency transceiver, wherein there are at least two first radio frequency transceivers; A communication interface is used to communicate with the support controller on the hydraulic support.

9. The system according to claim 8, characterized in that The wireless sensor comprises: The second MCU is used to instruct the wireless sensor to communicate with the wireless gateway, or to instruct to collect sensor data of the hydraulic support where the wireless sensor is currently located; A second radio frequency transceiver, used to send or receive a wireless signal to the corresponding wireless gateway; A sensing component, used for collecting sensing data of the hydraulic support where the wireless sensor is currently located, wherein the sensing data includes the posture, stroke, pressure and configuration information of the hydraulic support; A battery, used to power the wireless sensor; The radio frequency identification (RFID) unit is used to read and / or write the sensing data of the wireless sensor, wherein the radio frequency identification (RFID) unit includes an RFID reader / writer and an RFID transponder.

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