Multipath infrared ammeter reader and communication method

Abstract

The invention relates to a multipath infrared ammeter reader and a communication method. The multipath infrared ammeter reader comprises a power supply module, a signal processing module and a signal transmission module. The power supply module comprises an external power supply interface and a direct-current converter, the input end of the direct-current converter is connected with the external power supply interface, and the output end of the direct-current converter is connected with the data processing module and the signal transmission module; the signal processing module comprises a signal processing circuit, a processor and a storage unit, the signal processing circuit is respectively connected with the signal transmission module and the processor, and the processor is connected with the storage unit; the signal transmission module comprises at least two infrared communication units, the at least two infrared communication units are used for collecting infrared signals in different directions, and the signal collection directions of the at least two infrared communication units are different. The multi-path infrared communication design is adopted, at least two paths of independent infrared communication technologies are compatible, collection communication in different directions is achieved, and the application background under the complex working condition is met.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of Internet of Things, and in particular to a multi-channel infrared electric meter reading device and a communication method. BACKGROUND

[0002] At present, the infrared electric meter reading device has many defects in installation and communication stability. First, due to the concave-convex structure of the infrared electric meter and the installation position, the reading device cannot be normally installed in place. Second, the stability of infrared communication is limited by distance and angle. Third, the infrared protocol compatibility of the reading device is poor, and the infrared communication protocols of different infrared electric meter manufacturers may be different, resulting in that some reading devices cannot be compatible. Fourth, infrared light has cross interference, which is easily interfered by channel overlap and light reflection, resulting in unstable communication. Fifth, the installation and use environment of the existing reading device is single, and the adaptability is poor, which has certain limitations in different installation scenes. SUMMARY

[0003] In order to solve at least one of the above technical problems, the present application provides a multi-channel infrared electric meter reading device and a communication method.

[0004] According to some embodiments of the present application, a multi-channel infrared electric meter reading device is provided, which is used to connect with an electric meter through infrared wireless connection to obtain data of the electric meter. The multi-channel infrared electric meter reading device comprises a power supply module, a signal processing module and a signal transmission module. The power supply module comprises an external power supply interface and a DC converter. The external power supply interface is used to connect an external power supply. The input end of the DC converter is connected with the external power supply interface. The output end of the DC converter is connected with the data processing module and the signal transmission module respectively. The signal processing module comprises a signal processing circuit, a processor and a storage unit. The signal processing circuit is connected with the signal transmission module and the processor respectively. The signal processing circuit is used to send the signal of the signal transmission module to the processor after filtering and amplifying processing. The processor is connected with the storage unit. The signal transmission module comprises at least two infrared communication units. The at least two infrared communication units are used to collect infrared signals in different directions. The signal collection directions of the at least two infrared communication units are different.

[0005] Based on the above scheme, the multi-channel infrared electric meter reading device adopts multi-channel infrared communication design, can compatible at least two independent infrared communication technologies, can realize communication collection in different directions, so as to meet the application background under complex working conditions, also help to enhance the flexibility of reading device installation, can take into account the installation stability and communication stability.

[0006] In some possible implementation manners, the infrared communication unit comprises an infrared transmitter and an infrared receiver; the infrared transmitter comprises a triode and an infrared diode, an emitter of the triode is connected with an output end of the direct current converter, a collector of the triode is connected with a positive electrode of the infrared diode, a negative electrode of the infrared diode is grounded, and a base of the triode is connected with the processor; the infrared receiver comprises an infrared phototriode, a collector of the infrared phototriode is connected with the output end of the direct current converter and the processor respectively, and an emitter of the infrared phototriode is grounded.

[0007] Based on the above scheme, the infrared communication unit is realized by using a set of infrared diodes and infrared phototriodes, communication is stable and reliable, and the cost of the multi-channel infrared communication unit can be reduced.

[0008] In some possible implementation manners, the included angles of the signal collection directions of the adjacent infrared communication units are consistent.

[0009] Based on the above scheme, the signal collection directions of the plurality of infrared communication units are uniformly distributed, the compatibility can be enhanced, the flexibility of communication switching can be improved, and the communication connection can be ensured to be stable and reliable.

[0010] In some possible implementation manners, the signal processing circuit comprises at least two filter circuits, and the filter circuits correspond to the infrared communication units one by one.

[0011] Based on the above scheme, an independent filter circuit is arranged for each infrared communication unit, the infrared communication filtering can be optimized, the stability of the meter reader can be improved, and the cross interference of infrared light propagation can be reduced.

[0012] In some possible implementation manners, the at least two infrared communication units comprise a first infrared communication unit and a second infrared communication unit, the first infrared communication unit is configured to collect infrared signals of the electric meter in a horizontal direction, and the second infrared communication unit is configured to collect infrared signals of the electric meter in a vertical direction.

[0013] Based on the above scheme, the infrared communication unit at least meets horizontal collection communication and vertical collection communication, and the meter reader and the infrared electric meter can be successfully connected.

[0014] In some possible implementation manners, the multi-channel infrared electric meter meter reader further comprises a debugging module, the debugging module comprises at least one serial communication interface, and the serial communication interface is configured to externally connect a debugging device to debug the multi-channel infrared electric meter meter reader.

[0015] Based on the above scheme, the debugging module is provided with a serial communication interface for debugging, and the subsequent meter reader version maintenance and upgrade are facilitated.

[0016] In some possible implementation manners, the power supply module further includes an isolation converter, an input end of the isolation converter is connected with the external power supply interface, and an output end of the isolation converter is connected with the input end of the direct-current converter.

[0017] Based on the above scheme, by arranging the isolation converter, the external power supply can be filtered and isolated, the power supply quality of the meter reader is improved, and the stability of infrared communication is ensured.

[0018] According to some embodiments of the present application, a communication method is further provided, which is applied to the multi-channel infrared electric meter reader in any of the above embodiments, and the method comprises: In response to an infrared communication instruction, any infrared communication unit in the signal processing module is selected as a first target infrared communication unit, and the first target infrared communication unit is controlled to establish an infrared communication connection with a target electric meter; If the first target infrared communication unit fails to establish the communication connection with the target electric meter within a preset period, a new infrared communication unit is selected as the first target infrared communication unit, and the signal collection direction of the new infrared communication unit is different from the signal collection direction of the any infrared communication unit; In the case that the first target infrared communication unit successfully establishes the communication connection with the target electric meter, the first meter data of the target electric meter is acquired through the first target infrared communication unit.

[0019] Based on the above scheme, when the meter reader is connected with the infrared electric meter, the infrared communication channel can be adaptively switched, the communication reliability and compatibility are enhanced, and the meter reader can adapt to different application scenarios.

[0020] In some possible implementation manners, the method further comprises: In the case that the first target infrared communication unit successfully establishes the communication connection with the target electric meter, an infrared communication unit in the signal processing module that has not established the infrared communication connection with the target electric meter is selected as a second target infrared communication unit, and the second target infrared communication unit is controlled to establish the infrared communication connection with the target electric meter; In the case that the second target infrared communication unit successfully establishes the communication connection with the target electric meter, second meter data of the target electric meter is acquired through the second target infrared communication unit; The first meter data is verified based on the second meter data, and a communication abnormality warning is issued when the similarity between the second meter data and the first meter data is less than a preset threshold.

[0021] Based on the above scheme, on the basis of establishing an infrared communication connection, an additional control is performed on an infrared communication unit to obtain second electric meter data, and the first electric meter data is verified through the second electric meter data to ensure that the electric meter data is accurate and correct.

[0022] In some possible embodiments, the method further includes: When the similarity between the second electric meter data and the first electric meter data is greater than or equal to a preset threshold, the first electric meter data is corrected based on the second electric meter data.

[0023] Based on the above scheme, when the first electric meter data is similar to the second electric meter data, the final electric meter data is obtained by combining the two sets of electric meter data, thereby reducing the possibility of communication data error.

[0024] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, but not limiting the present application.

[0025] Other features and aspects of the present application will become apparent from the following detailed description of exemplary embodiments with reference to the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to more clearly illustrate the technical solutions and advantages in the embodiments of the present application or prior art, the drawings needed in the embodiments or prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creative labor.

[0027] Figure 1 A first structural block diagram of a multi-channel infrared electric meter reading device according to an embodiment of the present application is shown; Figure 2 A second structural block diagram of a multi-channel infrared electric meter reading device according to an embodiment of the present application is shown; Figure 3 A circuit structural diagram of a DC converter according to an embodiment of the present application is shown; Figure 4 A circuit structural diagram of an ESP32-S3 chip according to an embodiment of the present application is shown; Figure 5 A circuit structural diagram of a first infrared communication unit according to an embodiment of the present application is shown; Figure 6 A circuit structural diagram of a second infrared communication unit according to an embodiment of the present application is shown; Figure 7 A circuit structural diagram of a debugging module according to an embodiment of the present application is shown; Figure 8A flow chart illustrating steps of a communication method according to an embodiment of the present application is shown; Figure 9 A flow chart illustrating a working process of a multi-channel infrared electric meter reader according to an embodiment of the present application is shown; Figure 10 A flow chart illustrating electric meter data verification according to an embodiment of the present application is shown. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0029] It should be noted that the terms "first", "second", and the like in the description and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and do not necessarily indicate a specific order or a chronological sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or server including a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but can include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0030] Various exemplary embodiments, features and aspects of the present application will be described in detail below with reference to the accompanying drawings. The same reference numerals in the drawings represent functionally the same or similar elements. Although various aspects of the embodiments are illustrated in the drawings, the drawings are not necessarily drawn to scale unless specifically indicated.

[0031] The word "exemplary" is used herein in the sense of being an example, instance, or illustration. Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments.

[0032] The term "and / or" in this document is merely used to describe associated objects, and can represent three relationships, for example, A and / or B can represent three cases of A alone, A and B together, and B alone. In addition, the term "at least one" in this document represents any one of a plurality or any combination of at least two of a plurality, for example, including at least one of A, B and C can represent including any one or more elements selected from the set consisting of A, B and C.

[0033] In addition, for better illustrating the present application, numerous specific details are given in the following detailed description. Those skilled in the art will understand that the present application can be practiced without certain specific details, and the present application is equally applicable to methods, means, elements and circuits that are functionally or structurally similar to those described herein. In some instances, well-known methods, protocols, elements, and circuits have not been described in detail in order to avoid obscuring the present application.

[0034] At present, the infrared electric meter reader has many defects in installation and communication stability. First, due to the concave-convex structure of the infrared electric meter and the installation position, the reader cannot be normally installed in place. Second, the stability of infrared communication is limited by distance and angle. Infrared light needs to be transmitted in a straight line and is easily blocked by obstacles. It is usually required to keep a short distance between devices. Infrared communication is directional and requires the sender and receiver to be aligned. If the electric meter is installed at a high position or the meter box has good sealing performance, the reader may not be able to copy. Third, the infrared protocol compatibility of the reader is poor. The infrared communication protocols of different infrared electric meter manufacturers may be different, resulting in that some readers cannot be compatible. Fourth, infrared light has cross interference. It is easy to interfere with each other due to channel overlap and light reflection, resulting in unstable communication. Fifth, the installation and use environment of the existing reader is single and has poor adaptability. It has certain limitations in different installation scenes.

[0035] In order to solve at least one of the above technical problems, the present application provides a multi-channel infrared electric meter reader. The multi-channel infrared electric meter reader is used to connect with the electric meter through infrared wireless connection to obtain the data of the electric meter. The multi-channel infrared electric meter reader can transmit the data of the electric meter to the gateway device through wired or wireless mode.

[0036] Please refer to Figure 1 , the multi-channel infrared electric meter reader includes a power supply module, a signal processing module and a signal transmission module, Figure 2 The power supply unit in the power supply module.

[0037] In the present application, the power supply module includes an external power supply interface and a DC converter. The external power supply interface is used to connect an external power supply. The input end of the DC converter is connected with the external power supply interface. The output end of the DC converter is connected with the data processing module and the signal transmission module respectively. The present application does not limit the specific selection and circuit structure of the DC converter. In some specific embodiments, please refer to Figure 3 , the circuit structure of the DC converter is shown in Figure 3 The model of the DC converter is JW5017 or JW5026. The DC converter with the above model can convert the input voltage of 4.5V~28V into the target voltage. In the actual circuit, the input voltage of the DC converter is 5V and the output voltage of the DC converter is 3.3V.

[0038] In some embodiments, the power supply module further comprises an isolation converter, an input end of the isolation converter is connected with the external power supply interface, and an output end of the isolation converter is connected with the input end of the direct current converter. Specifically, the isolation converter is used for filtering and isolating the external 5V power supply to output a DC 5V signal. Based on the above scheme, by arranging the isolation converter, the external power supply can be filtered and isolated, the power supply quality of the meter reader is improved, and the stability of infrared communication is ensured.

[0039] In the embodiment of the present application, the signal processing module comprises a signal processing circuit, a processor and a storage unit, the signal processing circuit is connected with the signal transmission module and the processor respectively, the signal processing circuit is used for sending the signal of the signal transmission module after filtering and amplifying processing, the processor is connected with the storage unit, Figure 2 The download unit in the above scheme is the storage unit.

[0040] The embodiment does not limit the specific selection of the processor, that is, the architecture and model of the processor are not limited, for example, the processor can be a single-chip microcomputer, or an integrated chip integrated with a BLE chip and a WIFI chip, or a CPU processor configured based on an ARM architecture. In a specific embodiment, the processor can be configured as an ESP32-S3 chip, and the specific circuit of the ESP32-S3 chip is as shown in Figure 4 .

[0041] In the embodiment of the present application, the signal transmission module comprises at least two infrared communication units, the at least two infrared communication units are used for collecting infrared signals in different directions, and the signal collection directions of the at least two infrared communication units are different.

[0042] Based on the above scheme, the multi-channel infrared meter reader of the embodiment of the present application adopts a multi-channel infrared communication design, can be compatible with at least two independent infrared communication technologies, can realize collection and communication in different directions, so as to meet the application background under complex working conditions, and also helps to enhance the flexibility of the installation of the meter reader, and can take into account the stability of installation and communication.

[0043] Please refer to Figure 5 and Figure 6 , the infrared communication unit comprises an infrared transmitter and an infrared receiver; the infrared transmitter comprises a triode and an infrared diode, an emitter of the triode is connected with the output end of the direct current converter, a collector of the triode is connected with a positive electrode of the infrared diode, a negative electrode of the infrared diode is grounded, and a base of the triode is connected with the processor; the infrared receiver comprises an infrared phototriode, a collector of the infrared phototriode is connected with the output end of the direct current converter and the processor respectively, and an emitter of the infrared phototriode is grounded. Based on the above scheme, a set of infrared diodes and infrared phototriodes are used to realize the infrared communication unit, the communication is stable and reliable, and it is helpful to reduce the cost of the multi-channel infrared communication unit.

[0044] The embodiment does not limit the specific number of infrared communication units in the signal transmission module, nor the staggered relationship between the infrared communication units. With the increase in the number of infrared communication units, the signal collection direction of the infrared communication unit becomes more, and the infrared communication capability of the multi-channel infrared electric meter reading device is stronger. Correspondingly, the cost of the meter reading device will also increase. Therefore, the number and signal collection direction can be selected according to the actual application scene.

[0045] In some embodiments, in order to improve the speed of the infrared communication connection between the meter reading device and the electric meter, the signal collection directions of the multiple infrared communication units can be uniformly distributed, that is, the signal collection directions of the adjacent infrared communication units are consistent. Based on the above scheme, the signal collection directions of the multiple infrared communication units are uniformly distributed, and the infrared communication connection is activated in sequence to request connection with the electric meter, so that the infrared communication connection is accurately connected, the compatibility of the meter reading device is enhanced, the meter reading device can be flexibly applied in complex working environments, the flexibility of communication switching is improved, and the stability and reliability of the communication connection are ensured.

[0046] In some embodiments, the at least two infrared communication units include a first infrared communication unit and a second infrared communication unit. The wiring diagram of the first infrared communication unit is as shown in Figure 5 , and the wiring diagram of the second infrared communication unit is as shown in Figure 6 . The first infrared communication unit is used for transversely collecting the infrared signal of the electric meter, and the second infrared communication unit is used for longitudinally collecting the infrared signal of the electric meter. Based on the above scheme, the infrared communication unit at least satisfies transverse collection communication and longitudinal collection communication, so that the meter reading device and the infrared electric meter can be successfully connected.

[0047] In further embodiments, the signal transmission module includes multiple infrared communication unit groups, each infrared communication unit group includes two infrared communication units, and the signal collection directions of the two infrared communication units in the same infrared communication unit group are perpendicular to each other. Based on this setting, the meter reading device sequentially performs infrared communication connection in order in the form of infrared communication unit groups when working, which helps to realize fast connection of infrared communication.

[0048] With the increase in the number of infrared communication units, there may be coupling interference between different infrared communication units. In order to solve this problem, in some embodiments, the signal processing circuit includes at least two filter circuits, and the filter circuits correspond one-to-one to the infrared communication units. Based on the above scheme, an independent filter circuit is arranged for each infrared communication unit, which can optimize the infrared communication filtering, improve the stability of the meter reading device, reduce the cross interference of infrared light propagation, improve the accuracy of signal reading, and further improve the accuracy of data.

[0049] In some embodiments, the multi-channel infrared electric meter reader further comprises a debugging module, the debugging module comprises at least one serial communication interface, and the serial communication interface is used for externally connecting a debugging device to debug the multi-channel infrared electric meter reader. Based on the above scheme, the debugging module leaves a serial communication interface for debugging, which is convenient for subsequent version maintenance and upgrade of the meter reader.

[0050] In some specific embodiments, please refer to the connectors J3 and J4 in Figure 7 , Figure 7 The connectors J3 and J4 are the above-mentioned serial communication interfaces, and an external debugging device is connected with the meter reader through J3 and J4, and the parameter setting of the meter reader is completed based on J3 and J4.

[0051] The embodiment of the present application also provides a communication method applied to the multi-channel infrared electric meter reader in any one of the above embodiments, please refer to Figure 8 , the method comprises: Step S101, in response to an infrared communication instruction, any infrared communication unit in the signal processing module is selected as a first target infrared communication unit, and the first target infrared communication unit is controlled to establish an infrared communication connection with a target electric meter; Step S102, if the first target infrared communication unit fails to communicate with the target electric meter within a preset period, a new infrared communication unit is selected as the first target infrared communication unit, and the signal acquisition direction of the new infrared communication unit is different from the signal acquisition direction of any infrared communication unit; Step S103, in the case that the first target infrared communication unit successfully communicates with the target electric meter, the first meter data of the target electric meter is acquired through the first target infrared communication unit.

[0052] Based on the above scheme, when the meter reader is connected with the infrared electric meter, the infrared communication channel can be adaptively switched, the communication reliability and compatibility are enhanced, and the meter reader can adapt to different application scenarios.

[0053] In one specific embodiment, the multi-channel infrared electric meter reader comprises two infrared communication units, namely infrared communication unit A and infrared communication unit B, and the working process of the multi-channel infrared electric meter reader is as shown in Figure 9 After the meter reader is powered on, the infrared communication initialization is first performed, at this time, the infrared communication instruction is generated, then the meter reader establishes a connection through the infrared communication unit A, and then the connection is re-established through the infrared communication unit B if the connection fails, if the connection still fails, the infrared communication initialization is re-performed, after the connection of any infrared communication unit is successful, the infrared communication data is filtered, and finally the filtered communication data is processed.

[0054] In some embodiments, please refer to Figure 10 , the method further comprises: Step S201, in the case of successful communication connection between the first target infrared communication unit and the target electric meter, selecting an infrared communication unit in the signal processing module that has not established infrared communication connection with the target electric meter as a second target infrared communication unit, and controlling the second target infrared communication unit to establish infrared communication connection with the target electric meter; Step S202, in the case of successful communication connection between the second target infrared communication unit and the target electric meter, acquiring second electric meter data of the target electric meter through the second target infrared communication unit; Step S203, verifying the first electric meter data based on the second electric meter data, and issuing a communication abnormality warning when the similarity between the second electric meter data and the first electric meter data is less than a preset threshold.

[0055] Based on the above scheme, on the basis of establishing one infrared communication connection, an additional infrared communication unit is controlled to acquire second electric meter data, and the first electric meter data is verified through the second electric meter data, to ensure that the electric meter data is accurate and correct.

[0056] In further embodiments, the method further comprises: when the similarity between the second electric meter data and the first electric meter data is greater than or equal to a preset threshold, correcting the first electric meter data based on the second electric meter data. Based on the above scheme, when the first electric meter data is similar to the second electric meter data, the final electric meter data is obtained by combining the two electric meter data, thereby reducing the possibility of communication data error.

[0057] The above has described various embodiments of the present application, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes are obvious to those skilled in the art without departing from the scope and spirit of the described embodiments. The choice of terms used herein is intended to best explain the principles, practical applications, or technical improvements in the market of the embodiments, or to enable other ordinary skilled persons in the art to understand the embodiments disclosed herein.

Claims

1. A multipath infrared electricity meter reader, characterized by, The multi-channel infrared electric meter reading device is used to connect with electric meters through infrared wireless connection to obtain data of the electric meters; the multi-channel infrared electric meter reading device comprises a power supply module, a signal processing module and a signal transmission module; The power supply module comprises an external power supply interface and a DC converter, the external power supply interface is used to connect an external power supply, an input end of the DC converter is connected with the external power supply interface, and output ends of the DC converter are connected with the data processing module and the signal transmission module respectively; The signal processing module comprises a signal processing circuit, a processor and a storage unit, the signal processing circuit is connected with the signal transmission module and the processor respectively, the signal processing circuit is used to send the signal of the signal transmission module to the processor after filtering and amplifying processing, and the processor is connected with the storage unit; The signal transmission module comprises at least two infrared communication units, the at least two infrared communication units are used to collect infrared signals in different directions, and the signal collection directions of the at least two infrared communication units are different from each other.

2. A multi-channel infrared electricity meter reader according to claim 1, wherein, The infrared communication unit comprises an infrared transmitter and an infrared receiver; The infrared transmitter comprises a triode and an infrared diode, an emitter of the triode is connected with an output end of the DC converter, a collector of the triode is connected with a positive electrode of the infrared diode, a negative electrode of the infrared diode is grounded, and a base of the triode is connected with the processor; The infrared receiver comprises an infrared phototriode, a collector of the infrared phototriode is connected with an output end of the DC converter and the processor respectively, and an emitter of the infrared phototriode is grounded.

3. A multi-channel infrared electricity meter reader according to claim 2, wherein, The signal collection directions of adjacent infrared communication units are consistent.

4. A multi-channel infrared electricity meter reader according to claim 2, wherein, The signal processing circuit comprises at least two filter circuits, and the filter circuits correspond to the infrared communication units one by one.

5. A multi-channel infrared electric meter reader according to claim 2, wherein, The at least two infrared communication units comprise a first infrared communication unit and a second infrared communication unit, the first infrared communication unit is used to collect infrared signals of the electric meters horizontally, and the second infrared communication unit is used to collect infrared signals of the electric meters vertically.

6. A multi-channel infrared electricity meter reader according to claim 5, wherein, The multi-channel infrared electric meter reading device further comprises a debugging module, the debugging module comprises at least one serial communication interface, and the serial communication interface is used to connect with a debugging device to debug the multi-channel infrared electric meter reading device.

7. A multi-channel infrared electric meter reader according to claim 1, wherein, The power supply module further comprises an isolation converter, an input end of the isolation converter is connected with the external power supply interface, and an output end of the isolation converter is connected with an input end of the DC converter.

8. A communication method characterized by comprising: The method is applied to the multi-channel infrared electric meter reading device in any one of claims 1-7, and the method comprises: In response to an infrared communication instruction, any infrared communication unit in the signal processing module is selected as a first target infrared communication unit, and the first target infrared communication unit is controlled to establish an infrared communication connection with a target electric meter; If the first target infrared communication unit fails to be connected with the target electric meter in a preset period, a new infrared communication unit is selected as the first target infrared communication unit, and the signal collection direction of the new infrared communication unit is different from the signal collection direction of any infrared communication unit. In a case where the first target infrared communication unit is successfully connected with the target electric meter, first electric meter data of the target electric meter is acquired through the first target infrared communication unit.

9. The method of claim 8, wherein, The method further comprises: In a case where the first target infrared communication unit is successfully connected with the target electric meter, an infrared communication unit in the signal processing module that has not established an infrared communication connection with the target electric meter is selected as a second target infrared communication unit, and the second target infrared communication unit is controlled to establish an infrared communication connection with the target electric meter. In a case where the second target infrared communication unit is successfully connected with the target electric meter, second electric meter data of the target electric meter is acquired through the second target infrared communication unit. The first electric meter data is verified based on the second electric meter data, and a communication abnormality early warning is issued when the similarity between the second electric meter data and the first electric meter data is less than a preset threshold.

10. The method of claim 9, wherein, The method further comprises: When the similarity between the second electric meter data and the first electric meter data is greater than or equal to the preset threshold, the first electric meter data is corrected based on the second electric meter data.

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