Meter reading method, meter reading system, agent node and CCO

Abstract

The present invention relates to the field of meter reading, and discloses a meter reading method, a meter reading system, a proxy node and a CCO. The method comprises: receiving a central beacon frame sent by a CCO on a central beacon time slot in a TDMA time slot; performing meter reading according to a collection item in the central beacon frame to obtain meter reading data, and generating a first reply frame according to the meter reading data; forwarding the proxy beacon frame to a STA on a sub-time slot corresponding to the proxy node in a proxy beacon time slot in the TDMA time slot, so that the STA performs meter reading according to the collection item to obtain meter reading data and generates a second reply frame according to the meter reading data; uploading the first reply frame to the CCO according to the time slot configuration in the CSMA time slot, and receiving and forwarding the second reply frame uploaded by the STA to the CCO. The present invention sends a meter reading downlink message on a loose TDMA time slot, synchronously performs a slow serial port meter reading in the TDMA time slot, and greatly reduces the load of the CSMA time slot.

Description

Technical Field

[0001] The present invention relates to the field of meter reading, and in particular to a meter reading method, a meter reading system, an agent node and a CCO. Background Art

[0002] The dual-mode meter reading mode is mainly divided into three types according to business scenarios and historical reasons: point reading, routing active, and concurrent meter reading. Compared with routing meter reading, concurrent meter reading greatly improves the meter reading efficiency at the application layer, but has the following disadvantages: (1) Concurrent meter reading messages can only be sent in CSMA time slots, which greatly reduces the channel utilization of the business; (2) When the carrier module reads the meter, the low-speed serial port also occupies the CSMA time, reducing the utilization rate of the CSMA idle time slot, such as Figure 1 At present, with the in-depth promotion of the new power system, the concurrent meter reading method has gradually extended and sunk to the distribution side, and the source, network, load and storage links have become more closely connected. Massive data needs to be aggregated and processed efficiently in real time. The minute-level collection service is difficult to meet the current business needs in terms of business carrying, access, etc. of the local communication network. Summary of the invention

[0003] The purpose of the present invention is to provide a meter reading method, a meter reading system, an agent node and a CCO, which send meter reading downlink messages on a loose TDMA time slot, synchronously perform slow serial port meter reading in the TDMA time slot, make up for the time consumption in the CSMA time slot, greatly reduce the load of the CSMA time slot, and improve the channel utilization of the entire system; in addition, the corresponding meter reading uplink message is through the discrete time slot allocated in the TDMA time slot, which solves the competition problem of the uplink message.

[0004] In order to achieve the above-mentioned object, the first aspect of the present invention provides a meter reading method, which is applied to a proxy node, and the meter reading method includes: receiving a central beacon frame sent by a CCO on a central beacon time slot within a TDMA time slot, wherein the central beacon frame includes a collection entry; performing serial port meter reading according to the collection entry to obtain first meter reading data, and generating a first reply frame for responding to the central beacon frame according to the first meter reading data; forwarding the proxy beacon frame to a STA according to a communication network topology structure on a sub-time slot corresponding to the proxy node in the proxy beacon time slot within the TDMA time slot, so that the STA performs serial port meter reading according to the collection entry included in the proxy beacon frame to obtain second meter reading data and generates a second reply frame for responding to the proxy beacon frame according to the second meter reading data; and uploading the first reply frame to the CCO according to the first time slot configuration within the CSMA time slot, and receiving and forwarding the second reply frame uploaded by the STA to the CCO.

[0005] Through the above technical scheme, the present invention creatively sends meter reading downlink messages on a loose TDMA time slot, and synchronously executes slow serial port meter reading in the TDMA time slot, which makes up for the time consumption in the CSMA time slot, greatly reduces the load of the CSMA time slot, and improves the channel utilization of the entire system; in addition, the corresponding meter reading uplink message is transmitted through the discrete time slot allocated in the TDMA time slot, which solves the competition problem of the uplink message.

[0006] A second aspect of the present invention provides a meter reading method, which is applied to a CCO, and the meter reading method includes: configuring a central beacon time slot and a proxy beacon time slot in a TDMA time slot; sending a central beacon frame to a proxy node according to a communication network topology structure in the central beacon time slot in the TDMA time slot, so that the proxy node performs serial port meter reading according to a collection item in the central beacon frame to obtain first meter reading data and generates a first reply frame for responding to the central beacon frame according to the first meter reading data; and receiving the first reply frame uploaded by the proxy node according to the time slot configuration in the CSMA time slot and the second reply frame uploaded by the forwarded STA, wherein in a sub-time slot corresponding to the proxy node in the proxy beacon time slot in the TDMA time slot, the proxy node forwards the proxy beacon frame to the STA according to the communication network topology structure, so that the STA performs serial port meter reading according to the collection item included in the proxy beacon frame to obtain second meter reading data and generates a second reply frame for responding to the proxy beacon frame according to the second meter reading data.

[0007] According to a third aspect of the present invention, there is provided a meter reading system, which is applied to a proxy node. The meter reading system comprises: a receiving device, which is used to receive a central beacon frame sent by a CCO on a central beacon time slot within a TDMA time slot, wherein the central beacon frame comprises a collection entry; a meter reading device, which is used to perform serial port meter reading according to the collection entry to obtain first meter reading data, and generate a first reply frame for responding to the central beacon frame according to the first meter reading data; a forwarding device, which is used to forward the proxy beacon frame to a STA according to a communication network topology structure on a sub-time slot corresponding to the proxy node in the proxy beacon time slot within the TDMA time slot, so that the STA performs serial port meter reading according to the collection entry included in the proxy beacon frame to obtain second meter reading data and generates a second reply frame for responding to the proxy beacon frame according to the second meter reading data; and an uploading device, which is used to upload the first reply frame to the CCO according to the first time slot configuration within the CSMA time slot, and receive and forward the second reply frame uploaded by the STA to the CCO.

[0008] For specific details and benefits of the meter reading system applied to the proxy node provided by the embodiment of the present invention, please refer to the above description of the meter reading method applied to the proxy node, which will not be repeated here.

[0009] According to a fourth aspect of the present invention, there is provided a meter reading system, which is applied to a CCO, and the meter reading system comprises: a configuration device, which is used to configure a central beacon time slot and a proxy beacon time slot in a TDMA time slot; a sending device, which is used to send a central beacon frame to a proxy node according to a communication network topology structure in the central beacon time slot in the TDMA time slot, so that the proxy node performs serial port meter reading according to a collection item in the central beacon frame to obtain first meter reading data and generates a first reply frame for responding to the central beacon frame according to the first meter reading data; and a receiving device, which is used to receive the first reply frame uploaded by the proxy node according to the time slot configuration in the CSMA time slot and a second reply frame uploaded by a forwarded STA, wherein in a sub-time slot corresponding to the proxy node in the proxy beacon time slot in the TDMA time slot, the proxy node forwards the proxy beacon frame to the STA according to the communication network topology structure, so that the STA performs serial port meter reading according to the collection item included in the proxy beacon frame to obtain second meter reading data and generates a second reply frame for responding to the proxy beacon frame according to the second meter reading data.

[0010] For specific details and benefits of the meter reading system applied to CCO provided by the embodiment of the present invention, please refer to the above description of the meter reading method applied to CCO, which will not be repeated here.

[0011] A fifth aspect of the present invention provides a proxy node, the proxy node comprising: an execution device, used to execute the meter reading method.

[0012] A sixth aspect of the present invention provides a CCO, the CCO comprising: an execution device, used to execute the meter reading method.

[0013] A seventh aspect of the present invention provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the meter reading method is implemented.

[0014] An eighth aspect of the present invention provides a computer program product, comprising a computer program, which implements the meter reading method when executed by a processor.

[0015] A ninth aspect of the present invention provides a chip, wherein the chip stores a computer program, and the computer program implements the meter reading method when executed by the chip.

[0016] Other features and advantages of the present invention will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the embodiments of the present invention and constitute a part of the specification. Together with the following specific implementations, they are used to explain the embodiments of the present invention, but do not constitute a limitation on the embodiments of the present invention. In the accompanying drawings:

[0018] Figure 1 It is a meter reading timing diagram in the prior art;

[0019] Figure 2A This is a meter reading timing diagram provided by an embodiment of the present invention;

[0020] Figure 2B This is a meter reading timing diagram provided by an embodiment of the present invention;

[0021] Figure 3 is a flow chart of a meter reading method applied to an agent node provided by an embodiment of the present invention;

[0022] Figure 4 It is a schematic diagram of a communication network topology structure provided by an embodiment of the present invention;

[0023] Figure 5 is a flowchart of an uplink data sending process provided by an embodiment of the present invention;

[0024] Figure 6 is an interaction diagram among CCO, PCO and STA provided by an embodiment of the present invention; and

[0025] Figure 7 The present invention is a flow chart of a meter reading method applied to a CCO according to an embodiment of the present invention. DETAILED DESCRIPTION

[0026] The specific implementation of the present invention is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the present invention, and is not used to limit the present invention.

[0027] Before introducing the various embodiments of the present application, the core idea of ​​the present application is briefly explained.

[0028] The core idea of ​​the present application is: in a time division multiple access (TDMA) time slot, the CCO (Central Coordinator) distributes the meter reading downlink message to the PCO (Proxy Coordinator) and STA (Station) according to the communication network topology; at the same time, when the PCO and STA receive the meter reading downlink message in the central beacon time slot and the proxy beacon time slot in the TDMA time slot, respectively, Figure 2AAs shown in the figure, the serial meter reading is performed slowly in the TDMA time slot synchronously; then the meter reading uplink message is placed in the local sending queue, and when the carrier sense multiple access (CSMA) time slot arrives, the PCO and STA upload the message according to the time slot configuration: for example, the PCO first transmits the uplink message to the CCO in sequence based on the allocated time slot, and then the STA uploads the uplink message in the local sending queue to the PCO in sequence based on the allocated time slot; the uplink message is aggregated at the PCO, and the PCO forwards the aggregated uplink message to the CCO, thereby reducing the number of message transfers and improving the channel utilization efficiency.

[0029] Figure 3 FIG. 1 is a flow chart of a meter reading method applied to an agent node provided by an embodiment of the present invention. Figure 3 As shown, the meter reading method includes: step S301, receiving a central beacon frame sent by a CCO on a central beacon time slot within a TDMA time slot, wherein the central beacon frame includes a collection entry; step S302, performing serial port meter reading according to the collection entry to obtain first meter reading data, and generating a first reply frame for responding to the central beacon frame according to the first meter reading data; step S303, forwarding a proxy beacon frame to a STA according to a communication network topology structure on a sub-time slot corresponding to the proxy node in a proxy beacon time slot within the TDMA time slot, so that the STA performs serial port meter reading according to the collection entry included in the proxy beacon frame to obtain second meter reading data and generates a second reply frame for responding to the proxy beacon frame according to the second meter reading data; and step S304, uploading the first reply frame to the CCO according to the first time slot configuration within the CSMA time slot, and receiving and forwarding the second reply frame uploaded by the STA to the CCO.

[0030] The following is an explanation and description of each of the above steps performed by the proxy node. The proxy node is a carrier communication module or a dual-mode communication device. Specifically, the dual-mode communication device can be a device with power line carrier communication (PLC) and micro-power wireless communication (RF) functions, wherein PLC can be high-speed power line carrier communication (HPLC), and micro-power wireless communication can be high-speed micro-power wireless communication (HRF).

[0031] Before executing the following steps, the CCO configures the central beacon time slot and the proxy beacon time slot in the TDMA time slot, such as Figure 2A shown.

[0032] Step S301: receiving a central beacon frame sent by a CCO in a central beacon time slot within a TDMA time slot.

[0033] The central beacon frame may include a collection item. The collection item may include: voltage, current, or power. Each of the above collection items may be a minute-level collection item.

[0034] by Figure 4 Taking the communication network topology structure shown in FIG. 1 as an example, in the central beacon time slot in the TDMA time slot, CCO 1 sends a central beacon frame to the proxy nodes PCO 2 and PCO 3, that is, CCO 1 distributes the meter reading downlink message to the proxy node. PCO 2 receives the central beacon frame sent by CCO 1 in the central beacon time slot, wherein the central beacon frame includes the collection item - voltage. Similarly, PCO 3 also receives the central beacon frame.

[0035] Step S302: Execute serial port meter reading according to the collection item to obtain first meter reading data, and generate a first reply frame for responding to the central beacon frame according to the first meter reading data.

[0036] For example, when receiving the proxy beacon frame, PCO 2 performs serial meter reading (including Figure 2A or Figure 2B ), obtain the first meter reading data, and generate a first reply frame according to the first meter reading data to respond to the beacon frame. In addition, the first reply frame can also be placed in the local sending queue to wait for the arrival of the CSMA time slot, and then the message is uploaded according to the allocated time slot.

[0037] In addition, PCO 3 also performs the above-mentioned similar process, which will not be described in detail here. In addition, the process of generating the first reply frame according to the first meter reading data can be performed according to the existing method, which is not the main improvement of the present application and will not be described in detail here.

[0038] Step S303, in a sub-time slot corresponding to the proxy node in the proxy beacon time slot within the TDMA time slot, forwarding the proxy beacon frame to the STA according to the communication network topology structure, so that the STA performs serial port meter reading according to the collection entry included in the proxy beacon frame to obtain second meter reading data and generates a second reply frame for responding to the proxy beacon frame according to the second meter reading data.

[0039] like Figure 2A As shown, when the sub-slot assigned to PCO 2 in the proxy beacon slot within the TDMA time slot arrives, PCO 2 Figure 3The communication network topology shown forwards the proxy beacon frame to STA 4 and STA 5. That is, the proxy nodes PCO 2 and PCO 3 receive the proxy beacon frame (or meter reading downlink message) before STA 4, STA 5 and STA 6.

[0040] When receiving the proxy beacon frame, the STA 4 and the STA 5 perform serial port meter reading according to the acquisition bar - voltage, obtain the second meter reading data, and generate a second reply frame according to the second meter reading data to respond to the proxy beacon frame. In addition, the second reply frame can also be placed in the local sending queue to wait for the arrival of the CSMA time slot, and then the message is uploaded according to the allocated time slot.

[0041] In step S301 and step S303, when the terminal starts minute-level collection, the CCO adds a minute-level collection entry in the central beacon frame. In the central beacon time slot within the TDMA time slot, the CCO sends the central beacon frame to the corresponding PCO according to the communication network topology. The proxy beacon frame contains all the time slot arrangement content of the central beacon frame and also includes the minute-level collection entry. In the proxy beacon time slot within the TDMA time slot, each PCO sends the proxy beacon frame to the corresponding STA according to the communication network topology. This ensures that each node in the network receives the downlink meter reading data item in the corresponding TDMA time slot.

[0042] Step S304: uploading the first reply frame to the CCO according to the first time slot configuration in the CSMA time slot, and receiving and forwarding the second reply frame uploaded by the STA to the CCO.

[0043] According to different application scenarios, CSMA time slots can be allocated purposefully. Then, the proxy nodes (e.g., PCO 2, PCO 3) and STAs (e.g., STA 4, STA 5, STA 6) can upload the reply frames in sequence according to the allocated time slots; after receiving the reply frames uploaded by STA 4 and STA 5, the proxy node PCO 2 forwards the aggregated reply frames to CCO 1, or after receiving the reply frames uploaded by STA 4 or STA 5, it forwards the corresponding reply frames to CCO 1. Similarly, the proxy node PCO 3 can perform a similar forwarding process as above.

[0044] In this embodiment, the collection items are sent down using the central beacon frame and the proxy beacon frame in the TDMA time slot, and the time slot for the meter reading downlink message is not configured in the CSMA time slot, thereby greatly reducing the load of the CSMA time slot, improving the channel utilization of the entire system, and improving the business carrying capacity.

[0045] In one embodiment, for step S304, uploading the first reply frame to the CCO according to the first time slot configuration within the CSMA time slot, and receiving and forwarding the second reply frame uploaded by the STA to the CCO, including: uploading the first reply frame to the CCO on the sub-time slot corresponding to the proxy node in the first time slot within the CSMA time slot; receiving the second reply frame uploaded by each STA on the corresponding sub-time slot in the second time slot within the CSMA time slot; and uploading the received second reply frame to the CCO.

[0046] by Figure 2B For example, the first time slot in the CSMA time slot is allocated to the proxy node, and the second time slot is allocated to the STA. For the first time slot, the first time slot is allocated in the order in which the sub-time slots in the proxy beacon time slot are allocated to the proxy nodes (PCO 2, PCO 3); for the second time slot, the second time slot is allocated in the order of the proxy nodes to which the STA belongs, wherein the order of the proxy nodes to which the STA belongs in the second time slot (the proxy nodes PCO 2 to which STA 4 and STA 5 belong, and the proxy node PCO 3 to which STA 6 belongs) is the same as the order in which the sub-time slots in the proxy beacon time slot are allocated to the proxy nodes (PCO 2, PCO 3).

[0047] Specifically, when the sub-time slot corresponding to the proxy node PCO 2 in the first time slot within the CSMA time slot arrives, PCO 2 uploads the first reply frame to the CCO 1; when the sub-time slot corresponding to the proxy node PCO 3 in the first time slot within the CSMA time slot arrives, PCO 3 uploads the first reply frame to the CCO 1. When the sub-time slot corresponding to STA 4 in the second time slot of the CSMA time slot arrives, STA 4 uploads the second reply frame, and accordingly, PCO 2 receives the second reply frame uploaded by STA 4 in the sub-time slot corresponding to STA 4 in the second time slot; when the sub-time slot corresponding to STA 5 in the second time slot of the CSMA time slot arrives, STA 5 uploads the second reply frame, and accordingly, PCO 2 receives the second reply frame uploaded by STA 5 in the sub-time slot corresponding to STA 5 in the second time slot; when the sub-time slot corresponding to STA 6 in the second time slot of the CSMA time slot arrives, STA 6 uploads the second reply frame, and accordingly, PCO 3 receives the second reply frame uploaded by STA 6 in the sub-time slot corresponding to STA 6 in the second time slot. PCO 2 and PCO 3 upload the received second reply frames to CCO 1 respectively.

[0048] That is to say, after receiving the second meter reading data (or serial port message), when the CSMA time slot arrives, STA 4 and STA 5 upload reply frames first, and then STA 6 uploads reply frames (when STA and PCO are dual-mode communication devices, STA 4, STA 5, and STA 6 reply to the proxy beacon frame on the dual-mode channel). Since the time slots allocated to the proxy nodes PCO 2 and PCO 3 in the TDMA time slot are inconsistent (the time slot allocated to PCO 2 is earlier than the time slot allocated to PCO 3), STA 4 and STA 5 send reply frames first on the CSMA time slot, and STA 6 sends them later, which has the effect of data dispersion in the CSMA time slot, thereby improving the utilization efficiency of the CSMA time slot.

[0049] In another embodiment, according to the first time slot configuration within the CSMA time slot, uploading the first reply frame to the CCO, and receiving and forwarding the second reply frame uploaded by the STA to the CCO (i.e., step S304), also includes: starting a timer, and when the timer reaches the preset duration, executing the step of uploading the received second reply frame to the CCO.

[0050] Further, according to the first time slot configuration in the CSMA time slot, uploading the first reply frame to the CCO, and receiving and forwarding the second reply frame uploaded by the STA to the CCO (i.e., step S304), also includes: when the timer has not reached the preset duration and a second reply frame uploaded by any STA is received, restarting the timer.

[0051] After the node copies the hierarchical data from the service port, it executes the uplink sending process. In order to generate a network data storm for the data under the same proxy node PCO, the leaf node STA needs to aggregate the data at the proxy node and then send it in frames. Specifically, PCO 2 starts the timer and sets the preset duration. Before the timer reaches the preset duration, if PCO 2 receives a reply frame uploaded by STA 4 or STA 5 (i.e., minute-level collection data), the timer is refreshed; when the timer expires, PCO 2 aggregates the received reply frames and sends them to CCO 1. For PCO 3, a similar aggregation and sending process is performed.

[0052] In the existing concurrent meter reading, the meter reading message link layer is a question-and-answer, which does not fully utilize the data consistency characteristics of the low-voltage power consumption information collection system. In this embodiment, the business data is collected at the uplink message proxy node, which reduces the number of uplink message forwarding times and improves the stability of the entire network.

[0053] exist Figure 1In the concurrent meter reading process shown in the figure, the meter reading service messages are crowded in the tight CSMA time slots, and at the same time, the low-speed serial port wastes a lot of tight CSMA idle time slots. In this application, the meter reading downlink message and the low-speed serial port message are sent on the loose TDMA time slot, and the meter reading uplink message is discrete through TDMA itself, which solves the competition problem of the uplink message, greatly improving the meter reading efficiency and the stability of the entire dual-mode network system.

[0054] by Figure 5 Taking as an example, the process of each node (including the proxy node or leaf node - STA) sending uplink data of the collected data is explained.

[0055] Step (1), determine whether it is a CSMA time slot, if so, execute step (2), otherwise, start again.

[0056] Each node determines whether the current time is a CSMA time slot.

[0057] Step (2), determine whether there is data in the sending queue, if so, execute step (3), otherwise, start again.

[0058] Step (3), determine whether it is a leaf node, if so, execute step (4), otherwise, execute step (5).

[0059] Steps (2) to (3) are executed by each node.

[0060] Step (4), send upstream to the proxy node.

[0061] If STA 4 determines that it is a leaf node, it sends the data uplink to the proxy node.

[0062] In step (5), the proxy node starts the timer.

[0063] Step (6), determine whether the timer has reached the preset time length, if not, execute steps (7) and (5), if yes, execute step (8).

[0064] Step (7), receiving the collected data.

[0065] Before the timer reaches the preset duration, if the proxy node receives minute-level collection data, the timer is refreshed.

[0066] Step (8), collect and send.

[0067] The data is aggregated and sent to the CCO.

[0068] by Figure 6 Taking as an example, the communication process among CCO, proxy node PCO and station STA is explained and illustrated.

[0069] S1, when the central beacon time slot in the TDMA time slot arrives, the CCO sends the central beacon frame.

[0070] S2, PCO performs serial port acquisition and generates a reply frame, and puts the reply frame into the sending queue.

[0071] S3, when the sub-time slot corresponding to the PCO in the proxy beacon time slot within the TDMA time slot arrives, the proxy beacon frame is forwarded.

[0072] S4, STA performs serial port acquisition and generates a reply frame, and puts the reply frame into the sending queue.

[0073] S5, when the sub-time slot corresponding to the PCO in the first time slot within the CSMA time slot arrives, the PCO uploads a reply frame.

[0074] S6: When the sub-time slot corresponding to the STA in the second time slot within the CSMA time slot arrives, the STA uploads a reply frame.

[0075] S7, the PCO starts the timer.

[0076] S8, the PCO determines whether the timer has expired. If not, execute steps S9 and S7. If yes, execute step S10.

[0077] When the start time of the timer reaches the preset time, it indicates that the timer has expired.

[0078] S9: Receive the reply frame uploaded by other STAs.

[0079] S10, upload the aggregated reply frame.

[0080] This embodiment proposes sending minute-level collection data items in the TDMA time slot and using the discrete mechanism of the TDMA time slot to reduce the conflict of uplink messages to a certain extent. At the same time, the module performs serial meter reading in the TDMA time slot, reducing the service waiting time of the CSMA time slot, thereby greatly improving the utilization rate of the entire dual-mode channel to solve the rapidly increasing business needs of new energy and minute-level collection in the current new power system.

[0081] Figure 7 FIG. 1 is a flow chart of a meter reading method applied to a CCO provided by an embodiment of the present invention. Figure 7As shown, the meter reading method includes: step S701, configuring a central beacon time slot and a proxy beacon time slot in a TDMA time slot; step S702, sending a central beacon frame to a proxy node according to a communication network topology structure at the central beacon time slot in the TDMA time slot, so that the proxy node performs serial port meter reading according to a collection item in the central beacon frame to obtain first meter reading data and generates a first reply frame for responding to the central beacon frame according to the first meter reading data; and step S703, receiving the first reply frame uploaded by the proxy node according to the time slot configuration in the CSMA time slot and the second reply frame uploaded by the forwarded STA, wherein at a sub-time slot corresponding to the proxy node in the proxy beacon time slot in the TDMA time slot, the proxy node forwards the proxy beacon frame to the STA according to the communication network topology structure, so that the STA performs serial port meter reading according to the collection item included in the proxy beacon frame to obtain second meter reading data and generates a second reply frame for responding to the proxy beacon frame according to the second meter reading data.

[0082] The following explains and illustrates each of the above steps.

[0083] Step S701, configuring a central beacon slot and a proxy beacon slot in a TDMA time slot.

[0084] like Figure 2A As shown, the central beacon slot and the proxy beacon slot are configured by the CCO in the TDMA time slot.

[0085] Step S702, at the central beacon time slot within the TDMA time slot, a central beacon frame is sent to the proxy node according to the communication network topology structure, so that the proxy node performs serial port meter reading according to the collection items in the central beacon frame to obtain first meter reading data and generates a first reply frame for responding to the central beacon frame according to the first meter reading data.

[0086] The collection items may include: voltage, current, and / or power. Each of the above collection items is a minute-level collection item.

[0087] by Figure 4Taking the communication network topology structure shown in FIG. 1 as an example, in the central beacon time slot within the TDMA time slot, CCO 1 sends a central beacon frame to the proxy nodes PCO 2 and PCO 3, that is, CCO 1 distributes the meter reading downlink message to the proxy node. Upon receiving the proxy beacon frame, PCO 2 performs serial port meter reading according to the acquisition item - voltage in the beacon frame, obtains the first meter reading data, and generates a first reply frame according to the first meter reading data to respond to the beacon frame. In addition, the first reply frame can also be placed in the local sending queue to wait for the arrival of the CSMA time slot, and then the message is uploaded according to the allocated time slot. In addition, PCO 3 also performs a similar process as above, which will not be repeated here.

[0088] Step S703: receiving the first reply frame uploaded by the proxy node according to the time slot configuration in the CSMA time slot and the second reply frame uploaded by the forwarded STA.

[0089] Among them, in the sub-time slot corresponding to the proxy node in the proxy beacon time slot within the TDMA time slot, the proxy node forwards the proxy beacon frame to the STA according to the communication network topology structure, so that the STA performs serial port meter reading according to the collection items included in the proxy beacon frame to obtain second meter reading data and generates a second reply frame for responding to the proxy beacon frame according to the second meter reading data.

[0090] The process of the proxy node forwarding the proxy beacon frame and the STA executing the serial port meter reading and generating the second reply frame can be referred to the relevant description of step S303, which will not be described in detail here.

[0091] According to different application scenarios, CSMA time slots can be allocated purposefully. Then, the proxy nodes (e.g., PCO 2, PCO 3) and STAs (e.g., STA 4, STA 5, STA 6) can upload the reply frames in turn according to the allocated time slots, and accordingly, the uploaded reply frames are received by CCO 1. For example, after receiving the reply frames uploaded by STA 4 and STA 5, the proxy node PCO 2 forwards the aggregated reply frames to CCO 1, or after receiving the reply frames uploaded by STA 4 or STA 5, it forwards the corresponding reply frames to CCO 1. Similarly, the proxy node PCO 3 can perform a similar forwarding process as described above.

[0092] In the case where the proxy node includes multiple proxy nodes, for step S703, receiving the first reply frame uploaded by the proxy node according to the time slot configuration within the CSMA time slot and the second reply frame uploaded by the forwarded STA includes: receiving the first reply frame uploaded by each proxy node on the sub-time slot corresponding to each proxy node in the first time slot within the CSMA time slot; and receiving the second reply frame forwarded by each proxy node and uploaded by the STA belonging to the proxy node on the corresponding sub-time slot in the second time slot within the CSMA time slot, wherein, in the first time slot, the sub-time slot corresponding to the first proxy node is earlier than the sub-time slot corresponding to the second proxy node, and in the second time slot, the sub-time slot corresponding to the STA belonging to the first proxy node is earlier than the sub-time slot corresponding to the STA belonging to the second proxy node.

[0093] Specifically, if the proxy nodes include PCO 2 and PCO 3, Figure 2B For example, the first time slot in the CSMA time slot is allocated to the proxy node, and the second time slot is allocated to the STA. For the first time slot, the first time slot is allocated in the order in which the sub-time slots in the proxy beacon time slot are allocated to the proxy nodes (PCO 2, PCO 3); for the second time slot, the second time slot is allocated in the order of the proxy nodes to which the STA belongs, wherein the order of the proxy nodes to which the STA belongs in the second time slot (the proxy node PCO 2 to which STA 4 and STA 5 belong, and the proxy node PCO 3 to which STA 6 belongs) is the same as the order in which the sub-time slots in the proxy beacon time slot are allocated to the proxy nodes (PCO 2, PCO 3).

[0094] When the sub-time slot corresponding to the proxy node PCO 2 in the first time slot within the CSMA time slot arrives, PCO 2 uploads a first reply frame to the CCO 1, and accordingly, CCO 1 receives the first reply frame uploaded by PCO 2; when the sub-time slot corresponding to the proxy node PCO 3 in the first time slot within the CSMA time slot arrives, PCO 3 uploads a first reply frame to the CCO 1, and accordingly, CCO 1 receives the first reply frame uploaded by PCO 3. When the sub-time slot corresponding to STA 4 in the second time slot of the CSMA time slot arrives, STA 4 uploads the second reply frame, and accordingly, PCO 2 receives the second reply frame uploaded by STA 4 in the sub-time slot corresponding to STA 4 in the second time slot; when the sub-time slot corresponding to STA 5 in the second time slot of the CSMA time slot arrives, STA 5 uploads the second reply frame, and accordingly, PCO 2 receives the second reply frame uploaded by STA 5 in the sub-time slot corresponding to STA 5 in the second time slot; when the sub-time slot corresponding to STA 6 in the second time slot of the CSMA time slot arrives, STA 6 uploads the second reply frame, and accordingly, PCO 3 receives the second reply frame uploaded by STA 6 in the sub-time slot corresponding to STA 6 in the second time slot. PCO 2 and PCO 3 upload the received second reply frames to CCO 1 respectively, and accordingly, CCO 1 receives the second reply frames uploaded by PCO 2 and PCO 3.

[0095] That is to say, after receiving the second meter reading data (or serial port message), when the CSMA time slot arrives, STA 4 and STA 5 upload reply frames first, and then STA 6 uploads reply frames (when STA and PCO are dual-mode communication devices, STA 4, STA 5, and STA 6 reply to the proxy beacon frame on the dual-mode channel). Since the time slots allocated to the proxy nodes PCO 2 and PCO 3 in the TDMA time slot are inconsistent (the time slot allocated to PCO 2 is earlier than the time slot allocated to PCO 3), STA 4 and STA 5 send reply frames first on the CSMA time slot, and STA 6 sends them later, which has the effect of data dispersion in the CSMA time slot, thereby improving the utilization efficiency of the CSMA time slot.

[0096] In one embodiment, the meter reading method further includes: after the meter reading task is completed, counting the number of meter reading failure results based on the first reply frame and the second reply frame within a preset number of beacon periods, wherein the beacon period includes the TDMA time slot and the CSMA time slot; and when the number of meter reading failure results is less than a preset threshold, performing concurrent supplementary reading according to the second time slot configuration within the CSMA time slot.

[0097] Specifically, CCO 1 checks the minute-level collection situation. After the meter reading task is completed (if CCO is configured with a preset number of beacon cycles, the meter reading passes through the preset number of beacon cycles and CCO receives a reply frame fed back by each node in the meter reading task, indicating that the meter reading task is completed), the number of meter reading failure results is counted according to the received reply frames. If the number is less than a preset threshold (for example, 10), concurrent supplementary reading is performed according to the second time slot configuration in the CSMA time slot (this process refers to the number of failed meter readings according to the preset number of beacon cycles and the reply frame fed back by each node in the meter reading task is received according to the CCO). Figure 1 The time slot configuration shown in the figure performs a conventional meter reading process. For the specific process, please refer to the prior art and will not be described in detail here. Among them, the sum of the supplementary reading time and the time of the preset number of beacon cycles is less than 1 minute. If the CCO is configured with three beacon cycles (the standard stipulates that the beacon cycle is less than 10s. According to the scale, it can generally be set at 2~8s, such as 8s), then the supplementary reading time can be 10-24s (3 beacon cycles <30s+24s<60s). If the number is greater than or equal to the preset threshold, the next beacon cycle is still based on 2A or Figure 2B In this embodiment, if the number of failures is small, conventional concurrent supplementary meter reading can be combined to improve meter reading reliability; if the number of failures is large, the optimized meter reading method provided by the present invention is still used for meter reading.

[0098] In one embodiment, the meter reading method further includes: judging whether the meter reading task is completed based on a first reply frame and a second reply frame within a preset number of beacon periods, wherein the beacon period includes the TDMA time slot and the CSMA time slot; and when the meter reading task is not completed, executing a concurrent supplementary meter reading task according to the second time slot configuration within the CSMA time slot.

[0099] When reading the meter, for example, CCO performs concurrent supplementary reading according to the second time slot configuration in the CSMA time slot if the minute data is not collected (for example, one or some nodes in the meter reading task do not feedback a reply frame) within the configured preset number (for example, three) of beacon periods (the standard stipulates that the beacon period is less than 10s, and it can generally be set to 2-8s, for example, 8s) according to the scale. The sum of the supplementary reading time and the time of the preset number of beacon periods is less than 1 minute, for example, the supplementary reading time can be 10-24s.

[0100] In summary, the present invention creatively sends meter reading downlink messages on a loose TDMA time slot, and synchronously executes slow serial port meter reading in the TDMA time slot, which makes up for the time consumption in the CSMA time slot, greatly reduces the load of the CSMA time slot, and improves the channel utilization of the entire system; in addition, the corresponding meter reading uplink message is transmitted through the discrete time slot allocated in the TDMA time slot, which solves the competition problem of the uplink message.

[0101] An embodiment of the present invention provides a meter reading system, which is applied to a proxy node. The meter reading system includes: a receiving device, which is used to receive a central beacon frame sent by a CCO on a central beacon time slot within a TDMA time slot, wherein the central beacon frame includes a collection entry; a meter reading device, which is used to perform serial port meter reading according to the collection entry to obtain first meter reading data, and generate a first reply frame for responding to the central beacon frame according to the first meter reading data; a forwarding device, which is used to forward the proxy beacon frame to a STA according to a communication network topology structure on a sub-time slot corresponding to the proxy node in the proxy beacon time slot within the TDMA time slot, so that the STA performs serial port meter reading according to the collection entry included in the proxy beacon frame to obtain second meter reading data and generates a second reply frame for responding to the proxy beacon frame according to the second meter reading data; and an uploading device, which is used to upload the first reply frame to the CCO according to the first time slot configuration within the CSMA time slot, and receive and forward the second reply frame uploaded by the STA to the CCO.

[0102] Preferably, the uploading device includes: a first uploading module, used to upload the first reply frame to the CCO on a sub-time slot corresponding to the proxy node in a first time slot within the CSMA time slot; a storage module, used to receive a second reply frame uploaded by each STA on a corresponding sub-time slot in a second time slot within the CSMA time slot; and a second uploading module, used to upload the received second reply frame to the CCO.

[0103] Preferably, the uploading device further comprises: a starting module, configured to start a timer, and the second uploading module is configured to upload the received second reply frame to the CCO when the timer reaches the preset duration.

[0104] Preferably, the uploading device further comprises: a restarting module, configured to restart the timer when the timer has not reached the preset duration and a second reply frame uploaded by any STA is received.

[0105] Preferably, the collected items include: voltage, current, and / or power.

[0106] Preferably, the proxy node is a carrier communication module or a dual-mode communication device.

[0107] For specific details and benefits of the meter reading system applied to the proxy node provided by the embodiment of the present invention, please refer to the above description of the meter reading method applied to the proxy node, which will not be repeated here.

[0108] An embodiment of the present invention provides a meter reading system, which is applied to a CCO, and the meter reading system includes: a configuration device, which is used to configure a central beacon time slot and a proxy beacon time slot in a TDMA time slot; a sending device, which is used to send a central beacon frame to a proxy node according to a communication network topology structure in the central beacon time slot in the TDMA time slot, so that the proxy node performs serial port meter reading according to a collection item in the central beacon frame to obtain first meter reading data and generates a first reply frame for responding to the central beacon frame according to the first meter reading data; and a receiving device, which is used to receive the first reply frame uploaded by the proxy node according to the time slot configuration in a CSMA time slot and a second reply frame uploaded by a forwarded STA, wherein in a sub-time slot corresponding to the proxy node in the proxy beacon time slot in the TDMA time slot, the proxy node forwards the proxy beacon frame to the STA according to the communication network topology structure, so that the STA performs serial port meter reading according to the collection item included in the proxy beacon frame to obtain second meter reading data and generates a second reply frame for responding to the proxy beacon frame according to the second meter reading data.

[0109] Preferably, in the case that the proxy node includes multiple proxy nodes, the receiving device includes: a first receiving module, used to receive a first reply frame uploaded by each proxy node on a sub-time slot corresponding to each proxy node in a first time slot within the CSMA time slot; and a second receiving module, used to receive a second reply frame forwarded by each proxy node and uploaded by a STA belonging to the proxy node on a corresponding sub-time slot in a second time slot within the CSMA time slot, wherein, in the first time slot, the sub-time slot corresponding to the first proxy node is earlier than the sub-time slot corresponding to the second proxy node, and in the second time slot, the sub-time slot corresponding to the STA belonging to the first proxy node is earlier than the sub-time slot corresponding to the STA belonging to the second proxy node.

[0110] Preferably, the meter reading system further comprises: a counting device for counting the number of meter reading failure results according to the first reply frame and the second reply frame within a preset number of beacon periods after the meter reading task is completed, wherein the beacon period comprises the TDMA time slot and the CSMA time slot; and a supplementary reading device for performing concurrent supplementary reading according to the second time slot configuration within the CSMA time slot when the number of meter reading failure results is less than a preset threshold.

[0111] Preferably, the meter reading system further comprises: a judging device for judging whether the meter reading task is completed according to the first reply frame and the second reply frame within a preset number of beacon periods, wherein the beacon period comprises the TDMA time slot and the CSMA time slot; and an allocating device for executing a concurrent supplementary meter reading task according to the second time slot configuration within the CSMA time slot when the meter reading task is not completed.

[0112] For specific details and benefits of the meter reading system applied to CCO provided by the embodiment of the present invention, please refer to the above description of the meter reading method applied to CCO, which will not be repeated here.

[0113] An embodiment of the present invention provides a proxy node, and the proxy node includes: an execution device, which is used to execute the meter reading method.

[0114] An embodiment of the present invention provides a CCO, and the CCO includes: an execution device, which is used to execute the meter reading method.

[0115] An embodiment of the present invention provides a computer-readable storage medium, wherein a computer program is stored on the computer-readable storage medium. When the computer program is executed by a processor, the meter reading method is implemented.

[0116] An embodiment of the present invention provides a computer program product, including a computer program, and the computer program implements the meter reading method when executed by a processor.

[0117] An embodiment of the present invention provides a chip, wherein the chip stores a computer program, and the computer program implements the meter reading method when executed by the chip.

[0118] Specifically, this embodiment provides a chip, including: a processor; a memory for storing a computer program executed by the processor; the processor is used to read the computer program from the memory and execute the computer program to implement the meter reading method.

[0119] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, a variety of simple modifications can be made to the technical solution of the present invention, and these simple modifications all belong to the protection scope of the present invention.

[0120] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present invention will not further describe various possible combinations.

[0121] Those skilled in the art can understand that all or part of the steps in the above-mentioned embodiment method can be completed by instructing the relevant hardware through a program, and the program is stored in a storage medium, including a number of instructions to enable a single-chip microcomputer, a chip or a processor to execute all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), disk or optical disk and other media that can store program codes.

[0122] In addition, various embodiments of the present invention may be arbitrarily combined, and as long as they do not violate the concept of the present invention, they should also be regarded as the contents disclosed by the present invention.

Claims

1. A meter reading method, characterized in that: Applied to the proxy node, the meter reading method includes: receiving a central beacon frame transmitted by the CCO on a central beacon time slot within a TDMA time slot, wherein the central beacon frame includes an acquisition entry; Perform serial port meter reading according to the collection item to obtain first meter reading data, and generate a first reply frame for responding to the central beacon frame according to the first meter reading data; In a sub-time slot corresponding to the proxy node in the proxy beacon time slot within the TDMA time slot, forwarding a proxy beacon frame to the STA according to the communication network topology structure, so that the STA performs serial port meter reading according to the collection items included in the proxy beacon frame to obtain second meter reading data and generates a second reply frame for responding to the proxy beacon frame according to the second meter reading data; and uploading the first reply frame to the CCO according to the first time slot configuration in the CSMA time slot, and receiving and forwarding the second reply frame uploaded by the STA to the CCO, Uploading the first reply frame to the CCO according to the first time slot configuration in the CSMA time slot, and receiving and forwarding the second reply frame uploaded by the STA to the CCO, including: Uploading the first reply frame to the CCO in a sub-time slot corresponding to the proxy node in a first time slot within the CSMA time slot; receiving a second reply frame uploaded by each STA in a corresponding sub-slot in a second time slot within the CSMA time slot; and Uploading the received second reply frame to the CCO, uploading the first reply frame to the CCO according to the first time slot configuration in the CSMA time slot, and receiving and forwarding the second reply frame uploaded by the STA to the CCO, further comprising: starting a timer, When the timer reaches a preset duration, performing a step of uploading the received second reply frame to the CCO, Uploading the first reply frame to the CCO according to the first time slot configuration in the CSMA time slot, and receiving and forwarding the second reply frame uploaded by the STA to the CCO, further comprising: When the timer does not reach the preset duration and a second reply frame uploaded by any STA is received, the timer is restarted.

2. The meter reading method according to claim 1, characterized in that: The collected items include: voltage, current, and / or power.

3. The meter reading method according to claim 1, characterized in that: The proxy node is a carrier communication module or a dual-mode communication device.

4. A meter reading method, characterized in that: Applied to CCO, the meter reading method includes: Allocate a central beacon time slot and a proxy beacon time slot in a TDMA time slot; At the central beacon time slot within the TDMA time slot, a central beacon frame is sent to an agent node according to a communication network topology structure, so that the agent node performs serial port meter reading according to a collection item in the central beacon frame to obtain first meter reading data and generates a first reply frame for responding to the central beacon frame according to the first meter reading data; and receiving the first reply frame uploaded by the proxy node according to the time slot configuration in the CSMA time slot and the second reply frame uploaded by the forwarded STA, wherein in the sub-time slot corresponding to the proxy node in the proxy beacon time slot in the TDMA time slot, the proxy node forwards the proxy beacon frame to the STA according to the communication network topology structure, so that the STA performs serial port meter reading according to the collection items included in the proxy beacon frame to obtain second meter reading data and generates the second reply frame for responding to the proxy beacon frame according to the second meter reading data, In the case where the proxy node includes a plurality of proxy nodes, receiving the first reply frame uploaded by the proxy node according to the time slot configuration in the CSMA time slot and the second reply frame uploaded by the forwarded STA includes: receiving a first reply frame uploaded by each proxy node in a sub-time slot corresponding to each proxy node in a first time slot within the CSMA time slot; and receiving a second reply frame forwarded by each proxy node and uploaded by a STA belonging to the proxy node on a corresponding sub-slot in a second time slot within the CSMA time slot, wherein in the first time slot, the sub-slot corresponding to the first proxy node is earlier than the sub-slot corresponding to the second proxy node, and in the second time slot, the sub-slot corresponding to the STA belonging to the first proxy node is earlier than the sub-slot corresponding to the STA belonging to the second proxy node.

5. The meter reading method according to claim 4, characterized in that: The meter reading method further comprises: After the meter reading task is completed, counting the number of meter reading failure results according to the first reply frame and the second reply frame within a preset number of beacon periods, wherein the beacon period includes the TDMA time slot and the CSMA time slot; and When the number of the meter reading failure results is less than a preset threshold, concurrent supplementary meter reading is performed according to the second time slot configuration in the CSMA time slot.

6. The meter reading method according to claim 4, characterized in that: The meter reading method further comprises: Determining whether the meter reading task is completed according to the first reply frame and the second reply frame within a preset number of beacon periods, wherein the beacon period includes the TDMA time slot and the CSMA time slot; and When the meter reading task is not completed, a concurrent supplementary meter reading task is performed according to the second time slot configuration in the CSMA time slot.

7. A meter reading system, characterized in that: Applied to the proxy node, the meter reading system comprises: A receiving device, configured to receive a central beacon frame transmitted by the CCO in a central beacon time slot within a TDMA time slot, wherein the central beacon frame includes a collection entry; a meter reading device, configured to perform serial port meter reading according to the collection item to obtain first meter reading data, and to generate a first reply frame for responding to the central beacon frame according to the first meter reading data; a forwarding device, configured to forward a proxy beacon frame to a STA in a sub-time slot corresponding to the proxy node in a proxy beacon time slot within the TDMA time slot according to a communication network topology structure, so that the STA performs serial port meter reading according to the collection item included in the proxy beacon frame to obtain second meter reading data and generates a second reply frame for responding to the proxy beacon frame according to the second meter reading data; and an uploading device, configured to upload the first reply frame to the CCO according to a first time slot configuration in the CSMA time slot, and to receive and forward the second reply frame uploaded by the STA to the CCO, The uploading device comprises: A first uploading module, configured to upload the first reply frame to the CCO in a sub-time slot corresponding to the proxy node in a first time slot within the CSMA time slot; A storage module, configured to receive a second reply frame uploaded by each STA in a corresponding sub-time slot in a second time slot within the CSMA time slot; and A second uploading module is used to upload the received second reply frame to the CCO, The uploading device further comprises: a starting module, which is used to start the timer. The second uploading module is used for uploading the received second reply frame to the CCO when the timer reaches a preset duration. The uploading device also includes: The restart module is used to restart the timer when the timer has not reached the preset duration and a second reply frame uploaded by any STA is received.

8. The meter reading system according to claim 7, characterized in that: The collected items include: voltage, current, and / or power.

9. The meter reading system according to claim 7, characterized in that: The proxy node is a carrier communication module or a dual-mode communication device.

10. A meter reading system, characterized in that: Applied to CCO, the meter reading system includes: A configuration device, used to configure a central beacon time slot and a proxy beacon time slot in a TDMA time slot; a sending device, configured to send a central beacon frame to a proxy node at the central beacon time slot within the TDMA time slot according to a communication network topology structure, so that the proxy node performs serial port meter reading according to a collection item in the central beacon frame to obtain first meter reading data and generates a first reply frame for responding to the central beacon frame according to the first meter reading data; and A receiving device, used for receiving the first reply frame uploaded by the proxy node according to the time slot configuration in the CSMA time slot and the second reply frame uploaded by the forwarded STA, wherein in the sub-time slot corresponding to the proxy node in the proxy beacon time slot in the TDMA time slot, the proxy node forwards the proxy beacon frame to the STA according to the communication network topology structure, so that the STA performs serial port meter reading according to the collection item included in the proxy beacon frame to obtain the second meter reading data and generates the second reply frame for responding to the proxy beacon frame according to the second meter reading data, In the case where the proxy node includes a plurality of proxy nodes, the receiving device includes: A first receiving module is configured to receive a first reply frame uploaded by each proxy node in a sub-time slot corresponding to each proxy node in a first time slot within the CSMA time slot; and The second receiving module is used to receive a second reply frame forwarded by each proxy node and uploaded by a STA belonging to the proxy node on a corresponding sub-time slot in a second time slot within the CSMA time slot, wherein in the first time slot, the sub-time slot corresponding to the first proxy node is earlier than the sub-time slot corresponding to the second proxy node, and in the second time slot, the sub-time slot corresponding to the STA belonging to the first proxy node is earlier than the sub-time slot corresponding to the STA belonging to the second proxy node.

11. The meter reading system according to claim 10, characterized in that: The meter reading system also includes: A counting device, for counting the number of meter reading failure results according to the first reply frame and the second reply frame within a preset number of beacon periods after the meter reading task is completed, wherein the beacon period includes the TDMA time slot and the CSMA time slot; and The supplementary meter reading device is used for performing concurrent supplementary meter reading according to the second time slot configuration in the CSMA time slot when the number of the meter reading failure results is less than a preset threshold.

12. The meter reading system according to claim 10, characterized in that: The meter reading system also includes: A judging device, configured to judge whether the meter reading task is completed according to the first reply frame and the second reply frame within a preset number of beacon periods, wherein the beacon period includes the TDMA time slot and the CSMA time slot; and The allocation device is used for executing the concurrent supplementary meter reading task according to the second time slot configuration in the CSMA time slot when the meter reading task is not completed.

13. A proxy node, characterized in that: The proxy node comprises: an execution device, configured to execute the meter reading method according to any one of claims 1-3.

14. A CCO, characterized in that: The CCO comprises: an execution device, configured to execute the meter reading method according to any one of claims 4-6.

15. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, which, when executed by a processor, implements the meter reading method according to any one of claims 1 to 6.

16. A computer program product, characterized in that The invention comprises a computer program, which, when executed by a processor, implements the meter reading method according to any one of claims 1 to 6.

17. A chip, characterized in that: The chip stores a computer program, and when the computer program is executed by the chip, the meter reading method according to any one of claims 1 to 6 is implemented.

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