Control method of electric energy meter detection device, electric energy meter detection device and program product

Abstract

The invention discloses a control method of an electric energy meter detection device, the electric energy meter detection device and a program product. The electric energy meter detection device comprises a shielding chamber, a power supply, an electric energy meter, a wireless communicator and a receiver. The method comprises the steps that the electric energy meter is powered on, so that the wireless communicator generates second electromagnetic waves according to first electromagnetic waves, and the first electromagnetic waves are electromagnetic waves generated when the electric energy meter is powered on; the receiver generates a noise oscillogram according to the received second electromagnetic wave; taking the maximum amplitude in the noise oscillogram as a first amplitude, and taking the electromagnetic wave frequency when the first amplitude is generated as the noise frequency; controlling the electric energy meter to be powered off, and taking the amplitude corresponding to the noise frequency in the noise oscillogram as a second amplitude; and determining an adaptation result of the electric energy meter and the wireless communicator according to a difference value between the first amplitude value and the second amplitude value. According to the technical scheme, the adaptation degree between the wireless communicator and the electric energy meter can be accurately detected.

Description

Technical Field

[0001] This application pertains to the electricity meter industry, specifically relating to control methods for electricity meter testing devices, as well as electricity meter testing devices and software products. Background Technology

[0002] As electricity meters become more sophisticated, their communication methods are becoming increasingly diverse. Electricity meters and their communicators often exist in a separate, replaceable manner. In many regions, the structural dimensions and interface definitions of electricity meters and their communicators have been standardized to address different application scenarios. However, wireless communication solutions are also commonly found within the communicators.

[0003] The communication performance of a wireless communicator is related to its compatibility with the electricity meter. When a wireless communicator works with different electricity meters, the interference electromagnetic waves emitted by the electricity meters result in different communication performances.

[0004] Currently, because it is impossible to detect the degree of interference from electromagnetic waves emitted by electricity meters on wireless communicators, when using electricity meters and wireless communicators from different manufacturers, it is impossible to know whether the information transmitted and received by the electricity meter is complete and accurate. In other words, it is impossible to quantitatively analyze and test the compatibility between electricity meters and communication module products from different suppliers. As a result, electricity meters can only be used with wireless communicators from the same manufacturer, and it is not possible to freely combine electricity meters and wireless communicators from different suppliers, which restricts the further development of the industry.

[0005] Therefore, how to accurately detect the compatibility between wireless communicators and electricity meters is a technical problem that urgently needs to be solved. Summary of the Invention

[0006] The purpose of this application is to accurately test the compatibility between the wireless communicator and the electricity meter.

[0007] Other features and advantages of this application will become apparent from the following detailed description, or may be learned in part from practice of this application.

[0008] According to one aspect of the embodiments of this application, a control method for an energy meter detection device is provided, the energy meter detection device comprising: Shielded room; The power supply is located in the shielded room to shield against external electromagnetic interference. An electricity meter is installed in the shielded room, and the electricity meter is electrically connected to the power source. A wireless communicator is installed in the shielded room. The wireless communicator is electrically connected to the electricity meter, and the distance between the wireless communicator and the electricity meter is less than a set distance. A receiver is located outside the shielded room and is electrically connected to the wireless communicator to collect electromagnetic waves emitted by the wireless communicator. The control method includes: When the energy meter is powered on, the wireless communicator generates a second electromagnetic wave based on the first electromagnetic wave. The first electromagnetic wave refers to the electromagnetic wave generated by the energy meter when it is powered on. The receiver generates a noise waveform based on the received second electromagnetic wave; The maximum amplitude in the noise waveform is taken as the first amplitude, and the electromagnetic wave frequency at which the first amplitude is generated is taken as the noise frequency. The power meter is cut off, and the amplitude corresponding to the noise frequency in the noise waveform diagram is used as the second amplitude. The compatibility result between the electricity meter and the wireless communicator is determined based on the difference between the first amplitude and the second amplitude.

[0009] According to one aspect of the embodiments of this application, the energy meter detection device further includes a first attenuator, an amplifier, and a second attenuator. The second attenuator is disposed outside the shielded room. The first attenuator is electrically connected to the wireless communicator and the amplifier, respectively. The second attenuator is electrically connected to the amplifier and the receiver, respectively. The second electromagnetic wave emitted by the wireless communicator arrives at the receiver via the first attenuator, the amplifier, and the second attenuator in sequence.

[0010] According to one aspect of the embodiments of this application, the wireless communicator is provided with an equivalent load element for simulating the load when the wireless communicator is working normally; wherein, when the wireless communicator generates a second electromagnetic wave according to the first electromagnetic wave, only the equivalent load element is energized.

[0011] According to one aspect of the embodiments of this application, the wireless communicator is provided with an extension member, one end of which is connected to the antenna port of the wireless communicator, and the other end of which is disposed on the outside of the housing of the wireless communicator for connection with the receiver.

[0012] According to one aspect of an embodiment of this application, the wireless communicator is plugged into the electricity meter.

[0013] According to one aspect of the embodiments of this application, the receiver generates a noise waveform diagram based on the received second electromagnetic wave, including: The receiver treats electromagnetic waves in the second electromagnetic wave that conform to the target channel frequency as noise electromagnetic waves. An initial noise waveform is generated based on the time and attribute information of the noise electromagnetic wave arriving at the receiver. The initial noise waveform is adjusted to a reference level to obtain the noise waveform.

[0014] According to one aspect of the embodiments of this application, before the receiver changes the reference level, the reference level of the receiver is the maximum value that the receiver can achieve.

[0015] According to one aspect of the embodiments of this application, determining the compatibility result between the energy meter and the wireless communicator based on the difference between the first amplitude and the second amplitude includes: If the difference between the first amplitude and the second amplitude is less than a set threshold, then the energy meter is determined to be compatible with the wireless communicator. If the difference between the first amplitude and the second amplitude is greater than or equal to a set threshold, it is determined that the electricity meter and the wireless communicator are not compatible.

[0016] According to one aspect of the embodiments of this application, an energy meter detection device is provided, the energy meter detection device comprising: Shielded room; The power supply is located in the shielded room to shield against external electromagnetic interference. An electricity meter is installed in the shielded room, and the electricity meter is electrically connected to the power source. A wireless communicator is installed in the shielded room. The wireless communicator is electrically connected to the electricity meter, and the distance between the wireless communicator and the electricity meter is less than a set distance. A receiver is located outside the shielded room and is electrically connected to the wireless communicator to collect electromagnetic waves emitted by the wireless communicator. A control unit, wherein the control unit is configured to be the method described in any of the above-described embodiments.

[0017] According to one aspect of the embodiments of this application, a program product is provided, including a readable program / instruction that, when executed by a processor, implements the method as described in any of the preceding claims.

[0018] This application provides a control method for an electricity meter testing device, wherein the testing device includes a shielded chamber to shield against external electromagnetic interference. Next, a wireless communicator to be tested and an electricity meter are placed in the shielded chamber. The wireless communicator is electrically connected to the electricity meter to simulate the electromagnetic interference generated by the electricity meter on the wireless communicator during actual operation. The receiver receives a second electromagnetic wave generated by the wireless communicator due to the electricity meter interference, determines the total electromagnetic interference received by the receiver as a first amplitude, and the external interference as a second amplitude, and uses the difference between the first and second amplitudes as the electromagnetic interference caused by the electricity meter on the wireless communicator. This allows for accurate detection of the compatibility between the wireless communicator and the electricity meter. In other words, the electricity meter testing device and its control method described in this application can detect the compatibility between unspecified electricity meters and wireless communicators, thereby determining which wireless communicators and electricity meters from different manufacturers are compatible.

[0019] Other features and advantages of this application will become apparent from the following detailed description, or may be learned in part from practice of this application.

[0020] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0021] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application. It is obvious that the drawings described below are merely some embodiments of this application, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort.

[0022] Figure 1 A schematic diagram of an energy meter detection device according to an embodiment of this application is shown.

[0023] Figure 2 A flowchart is shown of a control method for an energy meter detection device according to an embodiment of this application.

[0024] Figure 3 A schematic diagram of a wireless communicator according to an embodiment of this application is shown.

[0025] Figure 4 A flowchart illustrating a receiver generating a noise waveform based on a received second electromagnetic wave, according to one embodiment of this application, is shown.

[0026] Figure 5 A flowchart illustrating the adaptation result of an electricity meter and a wireless communicator based on the difference between a first amplitude and a second amplitude, according to one embodiment of this application, is shown.

[0027] Figure 6 A schematic diagram of another electricity meter detection device according to one embodiment of this application is shown.

[0028] Figure 7 A computer system architecture block diagram is shown for implementing a control method for an energy meter detection device according to an embodiment of this application. Detailed Implementation

[0029] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided to make this application more comprehensive and complete, and to fully convey the concept of the exemplary embodiments to those skilled in the art.

[0030] Furthermore, the described features, structures, or characteristics can be combined in any suitable manner in one or more embodiments. Numerous specific details are provided in the following description to give a thorough understanding of embodiments of this application. However, those skilled in the art will recognize that the technical solutions of this application can be practiced without one or more of the specific details, or other methods, components, apparatuses, steps, etc., can be employed. In other instances, well-known methods, apparatuses, implementations, or operations are not shown or described in detail to avoid obscuring various aspects of this application.

[0031] The block diagrams shown in the accompanying drawings are merely functional entities and do not necessarily correspond to physically independent entities. That is, these functional entities can be implemented in software, in one or more hardware modules or integrated circuits, or in different network and / or processor devices and / or microcontroller devices.

[0032] The flowcharts shown in the accompanying drawings are merely illustrative and do not necessarily include all content and operations / steps, nor do they necessarily have to be performed in the described order. For example, some operations / steps can be broken down, while others can be combined or partially combined; therefore, the actual execution order may change depending on the specific circumstances.

[0033] In the embodiments of this application, the terms "module" or "unit" refer to a computer program or part of a computer program that has a predetermined function and works with other related parts to achieve a predetermined goal, and can be implemented wholly or partially using software, hardware (such as processing circuitry or memory), or a combination thereof. Similarly, a processor (or multiple processors or memory) can be used to implement one or more modules or units. Furthermore, each module or unit can be part of an overall module or unit that includes the functionality of that module or unit.

[0034] As smart meters become increasingly sophisticated, their communication methods are becoming more diverse. Electricity meters and their communicators often exist in a separate, replaceable manner. In many regions, the structural dimensions and interface definitions of both meters and their communicators have been standardized to address different application scenarios. However, wireless communication solutions are commonly found within the communicators.

[0035] The communication performance of a wireless communicator is related to its compatibility with the electricity meter. Wireless communicators exhibit varying communication effects when paired with different electricity meters. However, the degree of influence between the electricity meter and the communicator cannot be quantitatively measured. Furthermore, it's impossible to ascertain the completeness and accuracy of the information transmitted and received by the electricity meter, raising concerns about communication success rates. In other words, the compatibility between electricity meters and communication modules from different suppliers cannot be quantitatively analyzed and tested. This results in electricity meters being compatible only with wireless communicators from the same manufacturer, limiting the ability to freely combine meters and wireless communicators from different suppliers and hindering further industry development.

[0036] Therefore, how to detect the compatibility between the wireless communicator and the electricity meter is a technical problem that urgently needs to be solved.

[0037] For the above technical issues, please refer to [link / reference]. Figure 1 , Figure 1 A schematic diagram of an electricity meter testing device according to an embodiment of this application is shown. The electricity meter testing device may include a shielded room to prevent external interference to the wireless communicator and the electricity meter within the shielded room. The electricity meter testing device may include a power supply, which is almost identical to the power supply used in actual use of the electricity meter, to simulate the influence of the electricity meter on the wireless communicator in actual use. The electricity meter testing device may include an electricity meter. The electricity meter is the electricity meter to be tested, wherein the electricity meter is detachably disposed within the shielded room. The electricity meter testing device may include a wireless communicator. The wireless communicator is the communicator to be tested. The wireless communicator is detachably disposed within the shielded room to shield only electromagnetic interference caused to the wireless communicator by factors other than the electricity meter. The electricity meter testing device may include a receiver for receiving electromagnetic waves generated by the electricity meter affecting the wireless communicator, thereby determining whether the electricity meter and the wireless communicator are compatible.

[0038] In some embodiments, the electricity meter detection device includes: a shielded room; a power supply, located inside the shielded room to shield against external electromagnetic interference; an electricity meter, located inside the shielded room and electrically connected to the power supply; a wireless communicator, located inside the shielded room and electrically connected to the electricity meter, with the distance between the wireless communicator and the electricity meter being less than a set distance; and a receiver, located outside the shielded room and electrically connected to the wireless communicator to collect electromagnetic waves emitted by the wireless communicator. In addition to the aforementioned device, this application also provides a method for controlling an electricity meter detection device to determine the compatibility result between a wireless communicator and an electricity meter.

[0039] Please see Figure 2 , Figure 2 A flowchart illustrating a control method for an energy meter detection device according to an embodiment of this application is shown. The embodiments of this application provide steps for a control method for an energy meter detection device, including: Step S110: Power on the electricity meter so that the wireless communicator generates a second electromagnetic wave based on the first electromagnetic wave. The first electromagnetic wave refers to the electromagnetic wave generated by the electricity meter when it is powered on. Step S120: The receiver generates a noise waveform diagram based on the received second electromagnetic wave. Step S130: Take the maximum amplitude in the noise waveform as the first amplitude, and take the electromagnetic wave frequency at which the first amplitude is generated as the noise frequency. Step S140: Control the power meter to disconnect and take the amplitude corresponding to the noise frequency in the noise waveform as the second amplitude. Step S150: Determine the compatibility result between the electricity meter and the wireless communicator based on the difference between the first amplitude and the second amplitude.

[0040] The above five steps are described in detail below.

[0041] In step S110, it is important to clarify that the electromagnetic waves generated by an electricity meter are generally divided into two types: one is intentional electromagnetic waves specifically used for communication, which transmit information to the outside world via a wireless communicator. The other is unintentional electromagnetic waves, also known as noise electromagnetic waves, which can interfere with intentional electromagnetic waves, thus causing distortion of the information transmitted by the electricity meter. In other words, any circuit or conductor carrying alternating current will generate electromagnetic waves. Electricity meters (especially smart meters) contain complex electronic circuits: such as chips for measuring current / voltage and microcontrollers for processing data. When these circuits are working, the current constantly changes (e.g., high-frequency signal transmission, pulse current within the chip), and the changing current generates a changing magnetic field, which in turn excites a changing electric field. The interaction between the two forms unintentional electromagnetic waves.

[0042] In this embodiment, since the discussion focuses on the impact of the electricity meter on the wireless communicator, it is sufficient to only stimulate the unintentional electromagnetic waves emitted by the electricity meter. Therefore, only the electricity meter is energized to simulate its working state, without controlling the meter to transmit information, so that the electricity meter only releases unintentional electromagnetic waves as the first electromagnetic wave.

[0043] The principle of wireless communication is to transmit information by sending and receiving electromagnetic waves of specific frequencies. Therefore, the first electromagnetic wave emitted by the electricity meter can be received by the wireless communicator, which then generates a corresponding second electromagnetic wave. For example, the first electromagnetic wave causes the wireless communicator's antenna to vibrate, thus generating the second electromagnetic wave. In other words, the second electromagnetic wave is noise generated by interference from the electricity meter and the surrounding environment when the wireless communicator is not in operation.

[0044] It should be clarified that the functions and states of the electricity meter and wireless communicator in this application are specific to the test scenario and do not represent the functions and states of the electricity meter and wireless communicator in normal use scenarios. For example, in the test scenario, the electricity meter and wireless communicator do not transmit or receive information, but in the use scenario, the electricity meter and wireless communicator can conduct wired or wireless communication.

[0045] In step S120, the receiver generates a noise waveform diagram based on the received second electromagnetic wave. The receiver generates the noise waveform diagram based on the time of receiving the second electromagnetic wave and the attribute information of the second electromagnetic wave, including the amplitude (intensity) and frequency of the second electromagnetic wave.

[0046] In some embodiments, the noise waveform is used to represent the magnitude of interference experienced by the wireless communicator at different frequencies. The larger the amplitude in the noise waveform, the greater the interference experienced by the wireless communicator.

[0047] In some embodiments, if the receiver is a digital radio frequency receiver, the received analog signal needs to be converted into a digital signal before it can be processed by the processor and a noise waveform diagram can be generated.

[0048] In step S130, the maximum amplitude in the noise waveform is taken as the first amplitude, and the electromagnetic wave frequency at which the first amplitude is generated is taken as the noise frequency. That is, the maximum interference experienced by the wireless communicator is taken as the first amplitude, and the electromagnetic wave frequency at which the first amplitude is generated is taken as the noise frequency. In other words, the interference experienced by the wireless communicator is greatest at the noise frequency. At this time, the first amplitude includes the effect of the power meter being energized on the wireless communicator, as well as the interference brought to the wireless communicator by the external environment.

[0049] In step S140, since the external environment is a variable, if the interference caused by the power meter to the wireless communicator is determined directly by the first amplitude, the accuracy of the judgment result will be low. The judgment structure will change significantly with the change of environment, and the first amplitude may change significantly with a different environment.

[0050] To address the fact that the first amplitude includes interference from the external environment on the wireless communicator, the power to the electricity meter is cut off, and the amplitude corresponding to the noise frequency in the noise waveform is obtained as the second amplitude. Since the electricity meter is powered off, the second amplitude represents the interference from the external environment on the wireless communicator.

[0051] In step S150, the difference between the first amplitude and the second amplitude, which is the combined interference to the wireless communicator (interference from the environment and the electricity meter) minus the interference from the environment, represents the impact of the electricity meter's power-on on the wireless communicator. Therefore, the compatibility result between the electricity meter and the wireless communicator can be determined based on the difference between the first and second amplitudes. A larger difference indicates a greater impact of the electricity meter's power-on on the wireless communicator, meaning a lower degree of compatibility. Conversely, a smaller difference indicates a smaller impact of the electricity meter's power-on on the wireless communicator, meaning a higher degree of compatibility.

[0052] Then, the compatibility between the electricity meter and the wireless communicator is determined based on the difference between the first and second amplitude values. Based on the compatibility results between the wireless communicator and the electricity meter, wireless communicators and electricity meters from different manufacturers can be selectively assembled for use. This allows for a clear understanding of whether the electricity meter will affect the normal operation of the wireless communicator, thus promoting further development in the industry.

[0053] This application provides a control method for an electricity meter testing device, wherein the testing device includes a shielded chamber to shield against external electromagnetic interference. Next, a wireless communicator to be tested and an electricity meter are placed in the shielded chamber. The wireless communicator is electrically connected to the electricity meter to simulate the electromagnetic interference generated by the electricity meter on the wireless communicator during actual operation. The receiver receives a second electromagnetic wave generated by the wireless communicator due to the electricity meter interference, determines the total electromagnetic interference received by the receiver as a first amplitude, and the external interference as a second amplitude, and uses the difference between the first and second amplitudes as the electromagnetic interference caused by the electricity meter on the wireless communicator, thereby determining the compatibility result between the electricity meter and the wireless communicator. In other words, the electricity meter testing device and its control method described in this application can detect the compatibility of unspecified electricity meters and wireless communicators, thereby determining which wireless communicators and electricity meters from different manufacturers are compatible.

[0054] In some embodiments, the energy meter detection device further includes a first attenuator, an amplifier, and a second attenuator. The second attenuator is located outside the shielded room. The first attenuator is connected to the wireless communicator and the amplifier, respectively. The second attenuator is electrically connected to the amplifier and the receiver, respectively. The second electromagnetic wave emitted by the wireless communicator reaches the receiver in sequence via the first attenuator, the amplifier, and the second attenuator.

[0055] An attenuator acts like a "pressure relief valve" in a signal system: by precisely reducing the intensity of electromagnetic waves, it protects equipment from damage caused by excessively strong signals, avoids distortion, and "controllably reduces the amplitude while minimizing damage to the signal itself."

[0056] Amplifiers act like "energy boosters" for electromagnetic waves: by enhancing signal strength and compensating for transmission losses, while preserving the original characteristics of electromagnetic waves as much as possible, they make weak, unusable signals "stronger and more usable." They are a key component in electronic systems that goes "from weak to strong" (complementing the attenuator's "from strong to weak" function).

[0057] In this embodiment, a first attenuator is used to attenuate the intensity of the second electromagnetic wave to prevent the amplifier from directly receiving a strong second electromagnetic wave, which could lead to amplifier overload and failure. That is, the amplifier can only receive second electromagnetic waves with intensity within the corresponding range. The amplifier amplifies the received second electromagnetic wave to increase the intensity of the output second electromagnetic wave. The second electromagnetic wave output by the amplifier is stronger than the second electromagnetic wave output by the wireless communicator to the first attenuator; that is, in this application, the second electromagnetic wave is first attenuated to a level that the amplifier can receive using the first attenuator. Then, the amplifier amplifies the second electromagnetic wave to significantly increase its intensity.

[0058] The second attenuator is located outside the shielding room, meaning the second electromagnetic wave will be output outside the shielding room and subject to electromagnetic interference from outside. Amplifying the second electromagnetic wave with an amplifier to increase its intensity also helps reduce external interference, as a stronger second electromagnetic wave has higher anti-interference capabilities.

[0059] The second attenuator reduces the intensity of the second electromagnetic wave to prevent the receiver from directly receiving the strong second electromagnetic waveguide, which could lead to receiver overload and failure. The second attenuator then inputs the reduced-intensity second electromagnetic wave to the receiver, allowing the receiver to generate a noise waveform based on the acquired second electromagnetic wave.

[0060] In some embodiments, the wireless communicator and the electricity meter are respectively connected to a power source. In other embodiments, the wireless communicator is plugged into the electricity meter and connected to the power source through the electricity meter; that is, the wireless communicator exists as a load of the electricity meter.

[0061] When a wireless communicator is plugged into an electricity meter and connected to a power source via the meter, the wireless communicator functions as a load on the electricity meter. Please refer to [link / reference needed]. Figure 3 , Figure 3 A schematic diagram of a wireless communicator according to an embodiment of this application is shown. Figure 3 The power supply for the wireless communicator is the connection point between the wireless communicator and the electricity meter.

[0062] In some embodiments, the wireless communicator includes an equivalent load component to simulate the load during normal operation. When the wireless communicator generates a second electromagnetic wave based on a first electromagnetic wave, only the equivalent load component is energized. During testing of the wireless communicator, the equivalent load component is physically connected, while the actual circuit is only partially connected; that is, the actual circuit used by the wireless communicator during operation is not powered. Only the equivalent load component is powered.

[0063] In other words, since the wireless communicator is electrically connected to the electricity meter, in order to simulate the first electromagnetic wave generated by the actual load of the electricity meter without actually activating the wireless communicator and causing interference, an equivalent load component is set in the wireless communicator to simulate the load when the wireless communicator is working normally. This ensures that the power-on state of the electricity meter during testing is the same as that during operation, thereby ensuring that the properties of the first electromagnetic wave during electricity meter testing are the same as those during electricity meter operation, thus ensuring the accuracy of this technical solution.

[0064] In some embodiments, the electricity meter does not have an equivalent load component installed in the working environment; the equivalent load component is only installed in the testing environment. In some embodiments, the equivalent load component is detachably located within the wireless communicator.

[0065] Please continue reading. Figure 3 The wireless communicator has an extension component. One end of the extension component is connected to the antenna port of the wireless communicator, and the other end of the extension component is located on the outside of the housing of the wireless communicator for connection to the receiver.

[0066] The antenna of the wireless communicator is used to transmit and receive electromagnetic waves. Therefore, an extension component is incorporated into the wireless communicator, with one end connected to the antenna port and the other end located on the outside of the wireless communicator's housing. This facilitates the implementation of this technical solution and the disassembly of the wireless communicator. It also facilitates the disassembly of the energy meter and the wireless communicator in the energy meter testing device, increasing the testing efficiency of the energy meter testing device.

[0067] Furthermore, the epitaxial component is connected to the receiver via a wire, which can greatly avoid the distortion of the second electromagnetic wave and help the receiver collect the second electromagnetic wave to the greatest extent.

[0068] In some embodiments, the electricity meter does not have an epitaxial component installed in the working environment; the epitaxial component is only installed in the testing environment. In some embodiments, the epitaxial component is detachably located within the wireless communicator. In some embodiments, the epitaxial component may be a coaxial cable.

[0069] Please see Figure 4 , Figure 4A flowchart illustrating a receiver generating a noise waveform based on a received second electromagnetic wave, according to an embodiment of this application, is shown. This application embodiment provides a step S120 whereby a receiver generates a noise waveform based on a received second electromagnetic wave, including: Step S121: The receiver takes the electromagnetic wave in the second electromagnetic wave that matches the target channel frequency as the noise electromagnetic wave. Step S122: Generate an initial noise waveform based on the arrival time and attribute information of the noise electromagnetic wave at the receiver; Step S123: Adjust the reference level of the initial noise waveform to obtain the noise waveform.

[0070] The above three steps are described in detail below.

[0071] In step S121, the receiver treats the electromagnetic waves in the second electromagnetic wave that conform to the target channel frequency as noise electromagnetic waves. The target channel frequency refers to the channel frequency of the wireless communicator during operation. This embodiment only analyzes the electromagnetic waves in the second electromagnetic wave that conform to the target channel frequency because only electromagnetic waves conforming to the target channel frequency will affect the wireless communication function of the wireless communicator. Therefore, only the electromagnetic waves in the second electromagnetic wave that conform to the target channel frequency are analyzed, and this portion of electromagnetic waves is treated as noise electromagnetic waves. This embodiment saves computing resources by selectively analyzing a portion of the second electromagnetic wave.

[0072] In step S122, an initial noise waveform is generated based on the arrival time and attribute information of the noise electromagnetic wave at the receiver. For example, the initial noise waveform can be generated based on the reception time, frequency, intensity, and other attribute information of the noise electromagnetic wave.

[0073] In step S123, in some embodiments, the receiver is a digital radio frequency receiver.

[0074] The reference level of the initial noise waveform needs to be adjusted because if the reference level is set too low (e.g., -100dBm), strong signals (e.g., -40dBm) will exceed the range, and the receiver will report an "overload" error. If the reference level is set too high (e.g., 0dBm), weak noise (e.g., -80dBm) will be drowned out by the background noise, making it impossible to observe waveform details.

[0075] In some embodiments, different reference levels will result in different sizes of the screen area occupied by the noise waveform. A reasonable reference level can help users better observe the noise waveform. For example, the size of the screen area occupied by the noise waveform can be determined by the height of the noise waveform amplitude (such as median amplitude, average amplitude, maximum amplitude, and minimum amplitude) relative to the screen area.

[0076] In some embodiments, the reference level of the initial noise waveform is automatically adjusted, such as by gradually decreasing the reference level to a minimum and then gradually increasing it to a maximum, or by gradually increasing it to a maximum and then gradually decreasing it to a minimum. If, during the adjustment process, the size of the screen area occupied by the noise waveform reaches a set area threshold, the adjustment of the reference level of the initial noise waveform is stopped, and the noise waveform is obtained. Alternatively, if the amplitude of the noise waveform reaches a set height during the adjustment process, the adjustment of the reference level of the initial noise waveform is stopped, and the noise waveform is obtained.

[0077] In some embodiments, before the receiver changes the reference level, the reference level of the receiver is the maximum value that the receiver can achieve. If the initial noise waveform does not meet the conditions, the reference level is gradually reduced until the noise waveform is obtained.

[0078] In some embodiments, before the receiver changes the reference level, the reference level is the maximum value that the receiver can achieve. In response to an adjustment command generated by the user's operation, the initial noise waveform is adjusted (gradually decreasing the reference level) until a deterministic event occurs, resulting in a new noise waveform. The deterministic event can be either the reference level remaining unchanged for a set duration, or the generation of a deterministic command in response to the user's operation.

[0079] In the embodiments of this application, if the reference level is set too high (e.g., much higher than the actual signal strength), weak electromagnetic radiation noise will be drowned out by the instrument's background noise, making it impossible to see waveform details and accurately read the amplitude. If the reference level is set too low (e.g., lower than the actual signal strength), strong signals will exceed the receiver's range, causing "overload" (similar to a thermometer exceeding its maximum scale when measuring boiling water), which not only prevents data readings but may also damage the receiver. Therefore, in some embodiments, to reduce the probability of a faulty receiver, the receiver's reference level is set to the maximum value that the receiver can achieve before the receiver changes the reference level. If the initial noise waveform does not meet the conditions, the reference level is gradually reduced.

[0080] By adjusting the reference level of the initial noise waveform, the obtained "appropriate reference level" ensures that the signal waveform of the noise waveform fills a reasonable area of ​​the instrument screen (such as 1 / 3 to 2 / 3), which is both clear and complete, making it easy to read the maximum noise amplitude.

[0081] Please refer to Figure 5 , Figure 5 A flowchart illustrating a method for determining the compatibility result between an electricity meter and a wireless communicator based on the difference between a first amplitude value and a second amplitude value, according to an embodiment of this application, is shown. This embodiment provides step S150 for determining the compatibility result between an electricity meter and a wireless communicator based on the difference between a first amplitude value and a second amplitude value, including: Step S151: If the difference between the first amplitude and the second amplitude is less than a set threshold, it is determined that the energy meter is compatible with the wireless communicator. Step S152: If the difference between the first amplitude and the second amplitude is greater than or equal to a set threshold, it is determined that the meter and the wireless communicator are not compatible.

[0082] The two steps described above are described below.

[0083] In step S151, if the difference between the first amplitude and the second amplitude is less than a set threshold, it is determined that the energy meter is compatible with the wireless communicator, that is, the energy meter and the wireless communicator can be used together without hindering the normal operation of the wireless communicator.

[0084] In step S152, if the difference between the first amplitude and the second amplitude is greater than or equal to a set threshold, it is determined that the electricity meter and the wireless communicator are incompatible. That is, the electricity meter and the wireless communicator cannot be used together, which will hinder the normal operation of the wireless communicator.

[0085] Please see Figure 6 , Figure 6 A schematic diagram of another electricity meter detection device according to an embodiment of this application is shown. The electricity meter detection device includes: a shielded chamber; a power supply, disposed within the shielded chamber to shield against external electromagnetic interference; an electricity meter, disposed within the shielded chamber and electrically connected to the power supply; and a wireless communicator, disposed within the shielded chamber and plugged into the electricity meter. The wireless communicator includes an equivalent load component and an extension component. The equivalent load component simulates the normal load of the wireless communicator. The two ends of the extension component are respectively disposed at the antenna port of the wireless communicator and on the outside of the wireless communicator's housing. A receiver, disposed outside the shielded chamber and electrically connected to the wireless communicator, collects the electromagnetic waves emitted by the wireless communicator.

[0086] The electricity meter detection device further includes a first attenuator, an amplifier, and a second attenuator, the second attenuator being located outside the shielded room. The first attenuator is connected to both the epitaxial element and the amplifier. The second attenuator is connected to both the amplifier and the receiver. In some embodiments, the epitaxial element may be a coaxial cable.

[0087] Figure 7 A computer system architecture block diagram is shown for implementing a control method for an energy meter detection device according to an embodiment of this application.

[0088] It should be noted that, Figure 7 The computer system 800 shown is merely an example and should not impose any limitations on the functionality and scope of use of the embodiments of this application.

[0089] like Figure 7As shown, the computer system 800 includes a central processing unit (CPU) 801, which can perform various appropriate actions and processes based on programs stored in read-only memory (ROM) 802 or programs loaded from storage section 808 into random access memory (RAM). The RAM 803 also stores various programs and data required for system operation. The CPU 801, ROM 802, and RAM 803 are interconnected via a bus 804. An input / output interface 805 (I / O interface) is also connected to the bus 804.

[0090] The following components are connected to the input / output interface 805: an input section 806 including a keyboard, mouse, etc.; an output section 807 including a cathode ray tube (CRT), liquid crystal display (LCD), etc., and speakers, etc.; a storage section 808 including a hard disk, etc.; and a communication section 809 including a network interface card such as a local area network card, modem, etc. The communication section 809 performs communication processing via a network such as the Internet. A drive 810 is also connected to the input / output interface 805 as needed. A removable medium 811, such as a disk, optical disk, magneto-optical disk, semiconductor memory, etc., is installed on the drive 810 as needed so that computer programs read from it can be installed into the storage section 808 as needed.

[0091] Specifically, according to embodiments of this application, the processes described in the various method flowcharts can be implemented as computer software programs. For example, embodiments of this application include a computer program product comprising a computer program carried on a computer-readable medium, the computer program containing program code for performing the methods shown in the flowcharts. In such embodiments, the computer program can be downloaded and installed from a network via communication section 809, and / or installed from removable medium 811. When the computer program is executed by central processing unit 801, it performs various functions defined in the system of this application.

[0092] It should be noted that the computer-readable medium shown in the embodiments of this application can be a computer-readable signal medium or a computer-readable storage medium, or any combination of the two. A computer-readable storage medium can be, for example,—but not limited to—an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination thereof. More specific examples of a computer-readable storage medium may include, but are not limited to: an electrical connection having one or more wires, a portable computer disk, a hard disk, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM), flash memory, optical fiber, portable compact disc read-only memory (CD-ROM), optical storage device, magnetic storage device, or any suitable combination thereof. In this application, a computer-readable storage medium can be any tangible medium containing or storing a program that can be used by or in conjunction with an instruction execution system, apparatus, or device. In this application, a computer-readable signal medium can include a data signal propagated in baseband or as part of a carrier wave, carrying computer-readable program code. Such transmitted data signals can take various forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination thereof. The computer-readable signal medium can also be any computer-readable medium other than a computer-readable storage medium, which can send, propagate, or transmit a program for use by or in connection with an instruction execution system, apparatus, or device. The program code contained on the computer-readable medium can be transmitted using any suitable medium, including but not limited to wireless, wired, etc., or any suitable combination thereof.

[0093] The flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operation of possible implementations of systems, methods, and computer program products according to various embodiments of this application. In this regard, each block in a flowchart or block diagram may represent a module, segment, or portion of code containing one or more executable instructions for implementing a specified logical function. It should also be noted that in some alternative implementations, the functions indicated in the blocks may occur in a different order than those indicated in the drawings. For example, two consecutively indicated blocks may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. It should also be noted that each block in a block diagram or flowchart, and combinations of blocks in a block diagram or flowchart, may be implemented using a dedicated hardware-based system that performs the specified function or operation, or using a combination of dedicated hardware and computer instructions.

[0094] It should be noted that although several modules or units for the device used to perform actions have been mentioned in the detailed description above, this division is not mandatory. In fact, according to the embodiments of this application, the features and functions of two or more modules or units described above can be embodied in one module or unit. Conversely, the features and functions of one module or unit described above can be further divided and embodied by multiple modules or units.

[0095] Through the above description of the embodiments, those skilled in the art will readily understand that the exemplary embodiments described herein can be implemented by software or by combining software with necessary hardware. Therefore, the technical solutions according to the embodiments of this application can be embodied in the form of a software product, which can be stored in a non-volatile storage medium (such as a CD-ROM, USB flash drive, external hard drive, etc.) or on a network, including several instructions to cause a computing device (such as a personal computer, server, touch terminal, or network device, etc.) to execute the methods according to the embodiments of this application.

[0096] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein.

[0097] It should be understood that this application is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this application is limited only by the appended claims.

Claims

1. A control method for an electricity meter detection device, characterized in that, The electricity meter testing device includes: Shielded room; The power supply is located in the shielded room to shield against external electromagnetic interference. An electricity meter is installed in the shielded room, and the electricity meter is electrically connected to the power source. A wireless communicator is installed in the shielded room. The wireless communicator is electrically connected to the electricity meter, and the distance between the wireless communicator and the electricity meter is less than a set distance. A receiver is located outside the shielded room and is electrically connected to the wireless communicator to collect electromagnetic waves emitted by the wireless communicator. The control method includes: When the energy meter is powered on, the wireless communicator generates a second electromagnetic wave based on the first electromagnetic wave. The first electromagnetic wave refers to the electromagnetic wave generated by the energy meter when it is powered on. The receiver generates a noise waveform based on the received second electromagnetic wave; The maximum amplitude in the noise waveform is taken as the first amplitude, and the electromagnetic wave frequency at which the first amplitude is generated is taken as the noise frequency. The power meter is cut off, and the amplitude corresponding to the noise frequency in the noise waveform diagram is used as the second amplitude. The compatibility result between the electricity meter and the wireless communicator is determined based on the difference between the first amplitude and the second amplitude.

2. The method according to claim 1, characterized in that, The energy meter detection device further includes a first attenuator, an amplifier, and a second attenuator. The second attenuator is located outside the shielded room. The first attenuator is electrically connected to the wireless communicator and the amplifier, respectively. The second attenuator is electrically connected to the amplifier and the receiver, respectively. The second electromagnetic wave emitted by the wireless communicator arrives at the receiver via the first attenuator, the amplifier, and the second attenuator in sequence.

3. The method according to claim 1, characterized in that, The wireless communicator is provided with an equivalent load component to simulate the load when the wireless communicator is working normally; wherein, when the wireless communicator generates a second electromagnetic wave based on the first electromagnetic wave, only the equivalent load component is energized.

4. The method according to claim 1, characterized in that, The wireless communicator includes an extension component. One end of the extension component is connected to the antenna port of the wireless communicator, and the other end of the extension component is located on the outside of the housing of the wireless communicator for connection to the receiver.

5. The method according to claim 1, characterized in that, The wireless communicator is plugged into the electricity meter.

6. The method according to claim 1, characterized in that, The receiver generates a noise waveform based on the received second electromagnetic wave, including: The receiver treats electromagnetic waves in the second electromagnetic wave that conform to the target channel frequency as noise electromagnetic waves. An initial noise waveform is generated based on the time and attribute information of the noise electromagnetic wave arriving at the receiver. The initial noise waveform is adjusted to a reference level to obtain the noise waveform.

7. The method according to claim 1, characterized in that, Before the receiver changes the reference level, the reference level of the receiver is the maximum value that the receiver can achieve.

8. The method according to claim 1, characterized in that, Based on the difference between the first amplitude and the second amplitude, the compatibility result between the energy meter and the wireless communicator is determined, including: If the difference between the first amplitude and the second amplitude is less than a set threshold, then the energy meter is determined to be compatible with the wireless communicator. If the difference between the first amplitude and the second amplitude is greater than or equal to a set threshold, it is determined that the electricity meter and the wireless communicator are not compatible.

9. An electricity meter testing device, characterized in that, The electricity meter testing device includes: Shielded room; The power supply is located in the shielded room to shield against external electromagnetic interference. An electricity meter is installed in the shielded room, and the electricity meter is electrically connected to the power source. A wireless communicator is installed in the shielded room. The wireless communicator is electrically connected to the electricity meter, and the distance between the wireless communicator and the electricity meter is less than a set distance. A receiver is located outside the shielded room and is electrically connected to the wireless communicator to collect electromagnetic waves emitted by the wireless communicator. A control unit configured to be the method according to any one of claims 1 to 8.

10. A program product comprising a readable program / instructions, characterized in that, When the readable program / instructions are executed by the processor, the method of any one of claims 1 to 8 is implemented.

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