Method for determining line loss abnormity of line, host, storage medium and electronic equipment

Abstract

The invention provides a line loss abnormity determination method, a host, a storage medium and an electronic device, and the method comprises the steps: receiving a detection current value sent by each slave, the detection current value being a detection current of the slave at a position on a line; according to the size relation between the detection current values of the two adjacent slaves, whether line loss abnormity exists in a target line segment is determined, and the target line segment is a line between the two adjacent slaves; under the condition that the line loss of the target line segment is abnormal, at least one newly-added slave is added to any position of the target line segment; according to the detection current value sent by the newly added slave and the detection current values of the two slaves at the two ends of the target line segment, the line abnormal point with the line loss abnormity on the target line segment is determined, and the abnormity reason of the line abnormal point is determined. Real-time current data at different positions of the line can be measured and compared on site to judge the load condition of the line.

Description

Technical Field

[0001] The present application relates to the field of abnormal line loss, and in particular, to a method for determining abnormal line loss, a host, a computer-readable storage medium, and an electronic device. Background Art

[0002] At present, the power grid uses low-voltage branch monitors to monitor the daily line loss value of high-line loss areas, but the main station system supporting the low-voltage branch monitors is not yet perfect. The user topology relationship needs to be imported by themselves, and real-time data cannot be called for measurement, which is inconvenient with large workload and long cycle. This remote data collection device cannot quickly locate the location where the line leakage occurs in the line and causes abnormal line loss. Summary of the invention

[0003] The main purpose of the present application is to provide a method for determining line loss anomalies, a host, a computer-readable storage medium and an electronic device, so as to at least solve the problems in the prior art that the main station system supporting the low-voltage branch monitor is still not perfect, the user topology relationship needs to be manually imported, and the real-time data cannot be called up, resulting in a large workload and a long cycle.

[0004] In order to achieve the above-mentioned purpose, according to one aspect of the present application, a method for determining line loss abnormality is provided, comprising: receiving a detection current value sent by each of the slaves, the detection current value being the detection current of the position of the slave on the line; determining whether there is a line loss abnormality in a target line segment according to the size relationship between the detection current values ​​of two adjacent slaves, the target line segment being the line between two adjacent slaves; in the case where the line loss abnormality exists in the target line segment, adding at least one new slave at any point on the target line segment; determining a line abnormality point on the target line segment where the line loss abnormality exists according to the detection current value sent by the new slave and the detection current values ​​of the two slaves at both ends of the target line segment, and determining the abnormal cause of the line abnormality point.

[0005] Optionally, before determining whether there is a line loss abnormality in the target segment based on the size relationship between the detection current values ​​of two adjacent slaves, the method also includes: when the target segment is the same main line, determining the detection current of the slave located at the front end of the line among the two adjacent slaves as a first current value, and determining the detection current of the slave located at the rear end of the line among the two adjacent slaves as a second current value; when the front part of the target segment is the main line and the rear part of the target segment is a plurality of branch lines, determining the detection current of the slave located on the main line as the first current value, and determining the sum of the detection currents of the first slaves on all the branch lines as the second current value, the first slave on the branch line being the first slave arranged on the branch line in the direction from the front end of the target segment to the rear end of the target segment.

[0006] Optionally, the target line segment is the same main line, and whether the target line segment has a line loss abnormality is determined based on the size relationship between the detection current values ​​of two adjacent slaves, including: determining the difference between the second current value and the first current value as a first difference; determining the ratio of the first difference to the second current value as a first ratio; when the first ratio is greater than or equal to a preset ratio and the duration is greater than or equal to a first preset duration, determining that the target line segment has the line loss abnormality; when the first ratio is less than the preset ratio, determining that the target line segment does not have the line loss abnormality.

[0007] Optionally, the target line segment is the same main line, and according to the size relationship between the detected current values ​​of two adjacent slaves, determining whether the target line segment has a line loss abnormality includes: obtaining a target mapping relationship, the target mapping relationship representing a mapping relationship between a line transmission power and a preset difference; determining the target line transmission power of the target line where the two adjacent slaves are located; determining a target preset difference according to the target line transmission power and the target mapping relationship; determining the difference between the second current value and the first current value as a second difference; when the second difference is greater than or equal to the target preset difference and the duration is greater than or equal to the second preset duration, determining that the target line segment has the line loss abnormality; when the second difference is less than the target preset difference, determining that the target line segment does not have the line loss abnormality.

[0008] Optionally, the target line segment is the same main line, and whether the target line segment has a line loss abnormality is determined based on the size relationship between the detected current values ​​of two adjacent slaves, including: determining the current change rate of the target line segment within a third preset time length based on the size relationship between the second current value and the first current value within the third preset time length; when the current change rate of the target line segment within the third preset time length is always greater than or equal to the preset change rate, determining that the target line segment has the line loss abnormality; when the current change rate of the target line segment within the third preset time length is less than the preset change rate, determining that the target line segment does not have the line loss abnormality.

[0009] Optionally, the target line segment is the same main line, and according to the detection current value sent by the newly added slave and the detection current values ​​of the two slaves at both ends of the target line segment, the line abnormality point on the target line segment where the line loss abnormality exists is determined, and the abnormal cause of the line abnormality point is determined, including: determining the line between the newly added slave and the slave located at the front end of the line as the first sub-line, and determining the difference between the detection current value of the newly added slave and the detection current of the slave located at the front end of the line as the third difference; determining whether there is a line loss abnormality on the first sub-line according to the size of the third difference; in the case that the line loss abnormality exists on the first sub-line, continue to add at least one new slave at any point on the first sub-line until the position of the line abnormality point is determined and the abnormal cause of the line abnormality point is determined.

[0010] Optionally, the host and the slave use an external clock signal or a trigger signal based on a high-stable crystal oscillator for data transmission, and the range of the transmission time error when the host and the slave perform data transmission is 0us to 15us.

[0011] According to another aspect of the present application, a host is provided, comprising: a receiving unit, for receiving a detection current value sent by each of the slaves, the detection current value being a detection current at the position of the slave on the line; a first determination unit, for determining whether a target line segment has a line loss abnormality according to a magnitude relationship between the detection current values ​​of two adjacent slaves, the target line segment being the line between two adjacent slaves; a processing unit, for adding at least one new slave at any location on the target line segment if the line loss abnormality exists in the target line segment; and a second determination unit, for determining a line abnormality point on the target line segment where the line loss abnormality exists according to the detection current value sent by the new slave and the detection current values ​​of the two slaves at both ends of the target line segment, and determining a cause of the abnormality at the line abnormality point.

[0012] According to another aspect of the present application, a computer-readable storage medium is provided, the computer-readable storage medium including a stored program, wherein when the program is executed, the device where the computer-readable storage medium is located is controlled to execute any one of the methods for determining line loss abnormality.

[0013] According to another aspect of the present application, an electronic device is provided, comprising: one or more processors, a memory, and one or more programs, wherein the one or more programs are stored in the memory and are configured to be executed by the one or more processors, and the one or more programs include a method for executing any one of the above-mentioned line loss abnormality determination methods.

[0014] Applying the technical solution of the present application, the above-mentioned method for determining abnormal line loss of a line first receives the detection current value sent by each slave, and the detection current value is the detection current of the position of the slave on the line; then, according to the size relationship between the detection current values ​​of two adjacent slaves, it is determined whether there is abnormal line loss in the target line segment, and the target line segment is the line between two adjacent slaves; then, if there is abnormal line loss in the target line segment, at least one new slave is added at any point on the target line segment; finally, according to the detection current value sent by the new slave and the detection current values ​​of the two slaves at both ends of the target line segment, the line abnormal point where there is abnormal line loss on the target line segment is determined, and the abnormal cause of the line abnormal point is determined. This method does not take a long time, can quickly measure the abnormal position of the line, does not need to communicate with the master station, does not need to integrate and calculate the electric energy data, can measure and compare the real-time current data of different positions of the line on site to determine the line load situation, and solves the problem that the master station system function supporting the low-voltage branch monitor in the prior art is not perfect, the user topology relationship needs to be manually imported, and the real-time data cannot be called for measurement, and there are large workloads and long cycles. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings constituting part of the present application are used to provide a further understanding of the present application. The exemplary embodiments and descriptions of the present application are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0016] Figure 1 A hardware structure block diagram of a mobile terminal for executing a method for determining abnormal line loss according to an embodiment of the present application is shown;

[0017] Figure 2 A schematic diagram of a flow chart of a method for determining abnormal line loss of a line provided in an embodiment of the present application is shown;

[0018] Figure 3 A schematic diagram of a position relationship between slaves provided according to an embodiment of the present application is shown;

[0019] Figure 4 Another schematic diagram of the position relationship between slaves provided according to an embodiment of the present application is shown;

[0020] Figure 5 A schematic diagram of a line loss abnormality determination system provided according to an embodiment of the present application is shown;

[0021] Figure 6 A structural block diagram of a host provided according to an embodiment of the present application is shown.

[0022] The above drawings include the following reference numerals:

[0023] 102, processor; 104, memory; 106, transmission device; 108, input and output devices. DETAILED DESCRIPTION

[0024] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0025] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0026] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present application described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0027] As introduced in the background technology, the functions of the master station system currently matched with the low-voltage branch monitor in the prior art are not perfect, the user topology relationship needs to be imported by oneself, and it is impossible to call for real-time data, which has the inconvenience of large workload and long cycle. And there are relatively complete line loss measuring instruments on the market, which are composed of a mutual inductor unit, a signal processing unit, a single-chip microprocessor unit and a carrier communication unit, and calculate the electric energy data through the measured current parameters. This device omits the communication function with the master station and the integral calculation function of the electric energy, and adopts a master-slave design. The slave is composed of a mutual inductor unit and a storage unit, and only monitors the current data of the installation location in real time; the host acts as a signal receiver and comparator, receives data from the slave through Zigbee communication technology and USB communication technology, compares the slave current data of adjacent installation locations, and determines the abnormal line location.

[0028] In order to solve the problems in the prior art that the main station system supporting the low-voltage branch monitor is not yet perfect, the user topology relationship needs to be manually imported, and the real-time data cannot be called up, resulting in a large workload and a long cycle, the embodiments of the present application provide a method for determining line loss abnormalities, a host, a computer-readable storage medium and an electronic device.

[0029] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0030] The method embodiments provided in the embodiments of the present application can be executed in a mobile terminal, a computer terminal or a similar computing device. Taking running on a mobile terminal as an example, Figure 1 FIG. 1 is a hardware structure block diagram of a mobile terminal of a method for determining abnormal line loss in an embodiment of the present invention. Figure 1 As shown, the mobile terminal may include one or more ( Figure 1 Only one is shown in the figure) a processor 102 (the processor 102 may include but is not limited to a processing device such as a microprocessor MCU or a programmable logic device FPGA) and a memory 104 for storing data, wherein the mobile terminal may also include a transmission device 106 and an input / output device 108 for communication functions. It can be understood by those skilled in the art that Figure 1 The structure shown is only for illustration and does not limit the structure of the mobile terminal. Figure 1 More or fewer components as shown, or with Figure 1 Different configurations are shown.

[0031] The memory 104 can be used to store computer programs, for example, software programs and modules of application software, such as the computer program corresponding to the method for determining abnormal line loss in the embodiment of the present invention. The processor 102 executes various functional applications and data processing by running the computer program stored in the memory 104, that is, the above method is implemented. The memory 104 may include a high-speed random access memory, and may also include a non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some examples, the memory 104 may further include a memory remotely arranged relative to the processor 102, and these remote memories may be connected to the mobile terminal via a network. Examples of the above network include but are not limited to the Internet, an intranet, a local area network, a mobile communication network, and a combination thereof. The transmission device 106 is used to receive or send data via a network. The specific example of the above network may include a wireless network provided by a communication provider of the mobile terminal. In one example, the transmission device 106 includes a network adapter (Network Interface Controller, referred to as NIC), which can be connected to other network devices through a base station so as to communicate with the Internet. In one example, the transmission device 106 may be a radio frequency (RF) module, which is used to communicate with the Internet wirelessly.

[0032] In this embodiment, a method for determining line loss abnormality running on a mobile terminal, a computer terminal or a similar computing device is provided. It should be noted that the steps shown in the flowchart of the accompanying drawings can be executed in a computer system such as a set of computer executable instructions, and although a logical order is shown in the flowchart, in some cases, the steps shown or described can be executed in an order different from that shown here.

[0033] Figure 2 FIG. 1 is a flow chart of a method for determining abnormal line loss according to an embodiment of the present application. Figure 2 As shown, the method comprises the following steps:

[0034] Step S201, receiving a detection current value sent by each of the above slaves, wherein the above detection current value is a detection current at the position where the above slave is located on the line;

[0035] Specifically, the current value of each slave is monitored in real time, and problems or faults in the line are discovered in time, which solves the problems of being unable to call for real-time data, heavy workload, and long cycle.

[0036] Step S202, determining whether a target line segment has abnormal line loss according to the magnitude relationship between the detected current values ​​of the two adjacent slaves, the target line segment being the line between the two adjacent slaves;

[0037] Specifically, the master and slave are used in combination, the slave is installed at any position of the line, the line between the slaves can have one or more meters, and the load of the line section is judged whether it is normal by comparing the current difference percentage of adjacent slaves.

[0038] Wherein, before determining whether there is line loss abnormality in the target line segment according to the magnitude relationship between the detected current values ​​of the two adjacent slaves, the method further includes the following steps:

[0039] Step S301, when the target line segment is the same main line, the detection current of the slave located at the front end of the line among the two adjacent slaves is determined as a first current value, and the detection current of the slave located at the rear end of the line among the two adjacent slaves is determined as a second current value;

[0040] like Figure 3 As shown, slave a and slave b are slaves on the same main line. Compare the current In measured by the previous slave a and the current In+1 measured by the next slave b in this line. If In-In+1≥In×5%, it is preliminarily determined that there is abnormal loss in the line between the slaves.

[0041] Step S302, when the front part of the target line segment is a main line and the rear part of the target line segment is a plurality of branch lines, the detection current of the slave on the main line is determined as the first current value, and the sum of the detection currents of the first slaves on all the branch lines is determined as the second current value, and the first slave on the branch line is the first slave arranged on the branch line in the direction from the front end of the target line segment to the rear end of the target line segment.

[0042] like Figure 4 As shown, slave c is the slave on the main line, slaves d1, slave d2 and slave d3 are slaves on the branch line behind slave c, then the sum of the measured current In of the previous slave c and the currents of the first slave d1, slave d2 and slave d3 in the rear section of the line ∑I(n+1)i=In+1 (if there is a branch line or a line leading out electric energy meter), if In-In+1≥In×5%, it is preliminarily judged that there is abnormal loss in the line between the slaves.

[0043] Specifically, by determining the detection current at different locations, potential problems can be discovered and solved in a timely manner, thereby improving the operation efficiency and safety of the power grid. At the same time, this method can also help optimize the operation and maintenance plan of the power grid and improve the overall performance and reliability of the power grid.

[0044] Wherein, the target line segment is the same main line, and according to the magnitude relationship between the detection current values ​​of the two adjacent slaves, determining whether there is line loss abnormality in the target line segment includes the following steps:

[0045] Step S401, determining a difference between the second current value and the first current value as a first difference;

[0046] Step S402, determining a ratio of the first difference to the second current value as a first ratio;

[0047] Step S403, when the first ratio is greater than or equal to the preset ratio and the duration is greater than or equal to the first preset duration, determining that the target line segment has the line loss anomaly;

[0048] Step S404: When the first ratio is less than the preset ratio, it is determined that the target line segment does not have the line loss anomaly.

[0049] Specifically, the abnormal line loss can be judged by the difference and ratio of the current values, so as to timely discover and solve the problem and improve the operation efficiency and safety of the power grid. Among them, the preset ratio is 5%. The setting of the preset ratio can be manually adjusted according to the actual situation such as the length, wire diameter, wire material, and whether it is overloaded of the measured line.

[0050] Wherein, the target line segment is the same main line, and according to the magnitude relationship between the detection current values ​​of the two adjacent slaves, determining whether there is line loss abnormality in the target line segment includes the following steps:

[0051] Step S501, obtaining a target mapping relationship, where the target mapping relationship represents a mapping relationship between line transmission power and a preset difference;

[0052] Step S502, determining the target line transmission power of the target line where two adjacent slaves are located;

[0053] Step S503, determining a target preset difference according to the target line transmission power and the target mapping relationship;

[0054] Step S504, determining the difference between the second current value and the first current value as a second difference;

[0055] Step S505, when the second difference is greater than or equal to the target preset difference and the duration is greater than or equal to the second preset duration, determining that the target line segment has the line loss anomaly;

[0056] Step S506: When the second difference is smaller than the target preset difference, it is determined that the target line segment does not have the line loss anomaly.

[0057] Specifically, the benefit of this method is that it can determine the target preset difference by analyzing and comparing the target mapping relationship, and judge whether there is an abnormality in the line based on the difference between the actual transmission power and the preset difference. This method can help to quickly and accurately identify line abnormalities and improve the efficiency and accuracy of line fault detection. Among them, the setting of the preset difference is related to the size of the current that can pass through the line. For lines running at high power, the value of the preset difference will be larger, and for lines running at low power, the value of the preset difference will be smaller.

[0058] Wherein, the target line segment is the same main line, and according to the magnitude relationship between the detection current values ​​of the two adjacent slaves, determining whether there is line loss abnormality in the target line segment includes the following steps:

[0059] Step S601, determining the current change rate of the target line segment within the third preset time length according to the magnitude relationship between the second current value and the first current value within the third preset time length;

[0060] Step S602, when the current change rate of the target line segment is always greater than or equal to the preset change rate within the third preset time period, determining that the target line segment has the line loss abnormality;

[0061] Step S603: When the current change rate of the target line segment within the third preset time period is less than the preset change rate, it is determined that the target line segment does not have the line loss abnormality.

[0062] Specifically, the advantage of this method is that it can determine whether the target line segment has abnormal line loss through the current change rate, so as to quickly and accurately locate and solve the problem, saving time and labor costs. In addition, setting a time limit can prevent misjudgment caused by current mutation.

[0063] Step S203, when the target line segment has the line loss anomaly, adding at least one new slave at any location on the target line segment;

[0064] Specifically, the method adopts a master-slave design, in which the slave consists of a mutual inductor unit and a storage unit, omitting the communication function with the master station and the integral calculation function of the electric energy. The real-time current data at different positions of the line can be measured and compared on-site to determine the line load condition. After finding a position with a large current difference in the line, a slave can be installed at the position of the line section to gradually approach the abnormal point of the line.

[0065] Among them, after finding a position where the current difference is large, a slave machine can be installed at the position of the line to gradually approach the abnormal point of the line.

[0066] Step S204, determining a line abnormal point on the target line segment where the line loss abnormality exists based on the detection current value sent by the newly added slave and the detection current values ​​of the two slaves at both ends of the target line segment, and determining the abnormal cause of the line abnormal point.

[0067] Specifically, by comparing the detection current values ​​of different slaves, the location of the line abnormality can be quickly determined, which helps to deal with the abnormal situation in a timely manner. By performing line abnormality detection and diagnosis by automated methods, the impact of human factors on the results can be reduced, and the reliability and accuracy of the diagnosis results can be improved.

[0068] The target line segment is the same main line, and according to the detection current value sent by the newly added slave and the detection current values ​​of the two slaves at both ends of the target line segment, a line abnormal point where the line loss abnormality exists on the target line segment is determined, and the abnormal cause of the line abnormal point is determined, including the following steps:

[0069] Step S701, determining the line between the newly added slave and the slave at the front end of the line as the first sub-line, and determining the difference between the detection current value of the newly added slave and the detection current of the slave at the front end of the line as the third difference;

[0070] Step S702, determining whether there is abnormal line loss on the first sub-line according to the size of the third difference;

[0071] Step S703, when the line loss abnormality exists on the first sub-line, continue to add at least one new slave at any point on the first sub-line until the position of the abnormal point of the line is determined and the abnormal cause of the abnormal point of the line is determined.

[0072] Specifically, after this method finds a location with a large current difference in the line, a slave machine can be installed at that location to gradually approach the abnormal point of the line. There is no need to communicate with the master station or integrate and calculate the electric energy data. The real-time current data at different locations of the line can be measured and compared on-site to determine the line load situation.

[0073] For example: when abnormal line loss is detected in a target line segment of 10m in length, a slave is added at the 6m of the target line segment to continue detection. If abnormal line loss is detected in the first 6m, a new slave is added at the 2m to continue detection until the abnormal point of the line and the cause of the abnormality can be determined.

[0074] Among them, the host and the slave use an external clock signal or a trigger signal based on a high-stability crystal oscillator for data transmission, and the range of the transmission time error when the host and the slave perform data transmission is 0us to 15us.

[0075] Specifically, data from a slave is received through Zigbee communication technology and USB communication technology, and current data of slaves at adjacent installation positions are compared to determine the abnormal line position.

[0076] In some instances, the host and slave devices communicate using Zigbee wireless communication technology and USB communication technology. Compared with Bluetooth, Zigbee has the advantages of low power consumption, low cost, high capacity and short latency, while USB communication technology is used to make up for the disadvantage of Zigbee technology's short transmission distance. For the slave devices at the beginning and end of a long line, the host can use USB communication to receive data.

[0077] Since the real-time current is compared, there are extremely high requirements for the sampling time error. An external clock signal based on a high-stability crystal oscillator or a trigger signal can be used to achieve synchronous sampling. It is hoped that the time error range is within 15 microseconds.

[0078] Figure 5 A schematic diagram of a line loss abnormality determination system provided according to an embodiment of the present application is shown, Figure 5 As shown, the slave includes a mutual inductor unit, a signal processing unit and a CPU, and the host includes a CPU.

[0079] Among them, the transformer unit includes a 0.5S class open current transformer, the signal processing unit includes an analog-to-digital converter and a DSP processor, the CPU includes registers, cache, MMU and DMA; the CPU in the host includes a control unit, an arithmetic logic unit, registers, cache and MMU.

[0080] In some instances, the host can set an adjustable parameter: the judgment threshold, the default value is 5%, and it can be manually adjusted according to actual conditions such as the length of the measurement line, the wire diameter, the wire material, whether it is overloaded, etc.

[0081] The above-mentioned method for determining line loss anomalies of the present application first receives the detection current value sent by each slave, and the detection current value is the detection current of the position of the slave on the line; then, according to the size relationship between the detection current values ​​of two adjacent slaves, it is determined whether there is a line loss anomaly in the target line segment, and the target line segment is the line between two adjacent slaves; then, if there is a line loss anomaly in the target line segment, at least one new slave is added at any point on the target line segment; finally, according to the detection current value sent by the new slave and the detection current values ​​of the two slaves at both ends of the target line segment, the line abnormal point where there is a line loss anomaly on the target line segment is determined, and the abnormal cause of the line abnormal point is determined. This method does not take a long time, can quickly measure the abnormal position of the line, does not need to communicate with the master station, does not need to integrate and calculate the electric energy data, can measure and compare the real-time current data of different positions of the line on site to determine the line load situation, and solves the problem that the master station system function supporting the low-voltage branch monitor in the prior art is not perfect, the user topology relationship needs to be manually imported, and the real-time data cannot be called for measurement, and there are large workloads and long cycles.

[0082] The embodiment of the present application also provides a host. It should be noted that the host of the embodiment of the present application can be used to execute the method for determining line loss abnormality provided by the embodiment of the present application. The device is used to implement the above-mentioned embodiments and preferred implementation modes, and the descriptions that have been made will not be repeated. As used below, the term "module" can be a combination of software and / or hardware that implements a predetermined function. Although the device described in the following embodiments is preferably implemented in software, the implementation of hardware, or a combination of software and hardware, is also possible and conceivable.

[0083] The host provided in the embodiment of the present application is introduced below.

[0084] Figure 6 is a schematic diagram of a host according to an embodiment of the present application. Figure 6 As shown, the device includes: a receiving unit 10, a first determining unit 20, a processing unit 30 and a second determining unit 40, the receiving unit 10 is used to receive the detection current value sent by each of the above-mentioned slaves, the above-mentioned detection current value is the detection current of the position of the above-mentioned slave on the line; the first determining unit 20 is used to determine whether there is a line loss abnormality in the target line segment according to the size relationship between the above-mentioned detection current values ​​of two adjacent above-mentioned slaves, and the above-mentioned target line segment is the line between the two adjacent above-mentioned slaves; the processing unit 30 is used to add at least one new slave at any point on the above-mentioned target line segment when the above-mentioned line loss abnormality exists in the above-mentioned target line segment; the second determining unit 40 is used to determine the line abnormal point on the above-mentioned target line segment where the above-mentioned line loss abnormality exists according to the detection current value sent by the above-mentioned new slave and the detection current values ​​of the two above-mentioned slaves at both ends of the above-mentioned target line segment, and determine the abnormal cause of the above-mentioned line abnormal point.

[0085] The host of the present application includes: a receiving unit, a first determining unit, a processing unit, and a second determining unit. The receiving unit is used to receive the detection current value sent by each slave, and the detection current value is the detection current of the position of the slave on the line; the first determining unit is used to determine whether there is a line loss abnormality in the target line segment according to the size relationship between the detection current values ​​of two adjacent slaves, and the target line segment is the line between two adjacent slaves; the processing unit is used to add at least one new slave at any point on the target line segment when there is a line loss abnormality in the target line segment; the second determining unit is used to determine the line abnormal point with line loss abnormality on the target line segment according to the detection current value sent by the new slave and the detection current values ​​of the two slaves at both ends of the target line segment, and determine the abnormal cause of the line abnormal point. The host does not take a long time, can quickly measure the abnormal position of the line, does not need to communicate with the main station, does not need to integrate and calculate the electric energy data, can measure and compare the real-time current data of different positions of the line on site to judge the line load situation, and solves the problem that the main station system function matched with the low-voltage branch monitor in the prior art is not perfect, the user topology relationship needs to be manually imported, and the real-time data cannot be called for measurement, and there are large workloads and long cycles.

[0086] In some examples, the device further includes a first determination module and a second determination module, the first determination module is used to determine whether there is a line loss abnormality in the target line segment according to the magnitude relationship between the detection current values ​​of the two adjacent slaves, and when the target line segment is the same main line, the detection current of the slave located at the front end of the line among the two adjacent slaves is determined as the first current value, and the detection current of the slave located at the rear end of the line among the two adjacent slaves is determined as the second current value; the second determination module is used to determine the detection current of the slave located on the main line as the first current value, and the sum of the detection currents of the first slaves on all the branch lines as the second current value, when the front part of the target line segment is the main line and the rear part of the target line segment is a plurality of branch lines, and the first slave on the branch line is the first slave arranged in the direction from the front end of the target line segment to the rear end of the target line segment on the branch line. This method can also help optimize the operation and maintenance plan of the power grid and improve the overall performance and reliability of the power grid.

[0087] In some examples, the first determination unit includes a third determination module, a fourth determination module, a fifth determination module and a sixth determination module, wherein the third determination module is used to determine the difference between the second current value and the first current value as the first difference; the fourth determination module is used to determine the ratio between the first difference and the second current value as the first ratio; the fifth determination module is used to determine that the target line segment has the line loss anomaly when the first ratio is greater than or equal to the preset ratio and the duration is greater than or equal to the first preset duration; the sixth determination module is used to determine that the target line segment does not have the line loss anomaly when the first ratio is less than the preset ratio. The line loss anomaly can be judged by the difference and ratio of the current values, so as to timely discover and solve the problem and improve the operation efficiency and safety of the power grid.

[0088] In some examples, the first determination unit includes a first acquisition module, a seventh determination module, an eighth determination module, a ninth determination module, a tenth determination module and an eleventh determination module, wherein the first acquisition module is used to acquire a target mapping relationship, wherein the target mapping relationship represents a mapping relationship between a line transmission power and a preset difference; the seventh determination module is used to determine the target line transmission power of the target line where the two adjacent slaves are located; the eighth determination module is used to determine the target preset difference according to the target line transmission power and the target mapping relationship; the ninth determination module is used to determine the difference between the second current value and the first current value as the second difference; the tenth determination module is used to determine that the target line segment has the line loss anomaly when the second difference is greater than or equal to the target preset difference and the duration is greater than or equal to the second preset duration; the eleventh determination module is used to determine that the target line segment does not have the line loss anomaly when the second difference is less than the target preset difference. This method can help to quickly and accurately identify line anomalies and improve the efficiency and accuracy of line fault detection.

[0089] In some instances, the first determination unit includes a twelfth determination module, a thirteenth determination module, and a fourteenth determination module. The twelfth determination module is used to determine the current change rate of the target line segment within the third preset time period according to the magnitude relationship between the second current value and the first current value within the third preset time period; the thirteenth determination module is used to determine that the target line segment has the line loss anomaly when the current change rate of the target line segment within the third preset time period is always greater than or equal to the preset change rate; the fourteenth determination module is used to determine that the target line segment does not have the line loss anomaly when the current change rate of the target line segment within the third preset time period is less than the preset change rate. The advantage of this method is that it can be used to determine whether the target line segment has a line loss anomaly by the current change rate, thereby quickly and accurately locating and solving the problem, saving time and labor costs.

[0090] In some examples, the second determination unit includes a fifteenth determination module, a sixteenth determination module, and a seventeenth determination module. The fifteenth determination module is used to determine the line between the newly added slave and the slave located at the front end of the line as the first sub-line, and determine the difference between the detection current value of the newly added slave and the detection current of the slave located at the front end of the line as the third difference; the sixteenth determination module is used to determine whether there is a line loss abnormality on the first sub-line according to the size of the third difference; the seventeenth determination module is used to continue to add at least one new slave at any point on the first sub-line when the line loss abnormality exists on the first sub-line, until the location of the abnormal point of the line is determined and the abnormal cause of the abnormal point of the line is determined. There is no need to communicate with the master station, and there is no need to integrate and calculate the electric energy data. The real-time current data at different positions of the line can be measured and compared on site to determine the line load situation.

[0091] In some examples, the host and the slave use an external clock signal or trigger signal based on a high-stable crystal oscillator for data transmission, and the range of the transmission time error when the host and the slave perform data transmission is 0us to 15us. The data from the slave is received through Zigbee communication technology and USB communication technology, and the current data of the slaves at adjacent installation positions are compared to determine the abnormal line position.

[0092] The host includes a processor and a memory, and the receiving unit and the like are stored in the memory as program units, and the processor executes the program units stored in the memory to implement corresponding functions. The modules are all located in the same processor; or, the modules are located in different processors in any combination.

[0093] The processor includes a kernel, which retrieves the corresponding program unit from the memory. One or more kernels can be set, and the kernel parameters can be adjusted to solve the problems that the main station system supporting the low-voltage branch monitor in the prior art is not yet perfect, the user topology relationship needs to be manually imported, and the real-time data cannot be called, and there are problems such as large workload and long cycle.

[0094] The memory may include non-permanent memory in a computer-readable medium, random access memory (RAM) and / or non-volatile memory, such as read-only memory (ROM) or flash RAM, and the memory includes at least one memory chip.

[0095] An embodiment of the present invention provides a computer-readable storage medium, which includes a stored program, wherein when the program is running, the device where the computer-readable storage medium is located is controlled to execute the method for determining line loss abnormality.

[0096] Specifically, the method for determining line loss abnormality includes:

[0097] Step S201, receiving a detection current value sent by each of the above slaves, wherein the above detection current value is a detection current at the position where the above slave is located on the line;

[0098] Specifically, the current value of each slave is monitored in real time, and problems or faults in the line are discovered in time, which solves the problems of being unable to call for real-time data, heavy workload, and long cycle.

[0099] Step S202, determining whether a target line segment has abnormal line loss according to the magnitude relationship between the detected current values ​​of the two adjacent slaves, the target line segment being the line between the two adjacent slaves;

[0100] Specifically, the method can compare the slave current data at the installation location to determine the abnormal line location.

[0101] Step S203, when the target line segment has the line loss anomaly, adding at least one new slave at any location on the target line segment;

[0102] Specifically, the method adopts a master-slave design, in which the slave consists of a mutual inductor unit and a storage unit, omitting the communication function with the master station and the integral calculation function of the electric energy. The real-time current data at different positions of the line can be measured and compared on-site to determine the line load condition.

[0103] Step S204, determining a line abnormal point on the target line segment where the line loss abnormality exists based on the detection current value sent by the newly added slave and the detection current values ​​of the two slaves at both ends of the target line segment, and determining the abnormal cause of the line abnormal point.

[0104] Specifically, by comparing the detection current values ​​of different slaves, the location of the line abnormality can be quickly determined, which helps to deal with the abnormal situation in a timely manner. By performing line abnormality detection and diagnosis by automated methods, the impact of human factors on the results can be reduced, and the reliability and accuracy of the diagnosis results can be improved.

[0105] An embodiment of the present invention provides a processor, and the processor is used to run a program, wherein the method for determining line loss abnormality is executed when the program is running.

[0106] Specifically, the method for determining line loss abnormality includes:

[0107] Step S201, receiving a detection current value sent by each of the above slaves, wherein the above detection current value is a detection current at the position where the above slave is located on the line;

[0108] Specifically, the current value of each slave is monitored in real time, and problems or faults in the line are discovered in time, which solves the problems of being unable to call for real-time data, heavy workload, and long cycle.

[0109] Step S202, determining whether a target line segment has abnormal line loss according to the magnitude relationship between the detected current values ​​of the two adjacent slaves, the target line segment being the line between the two adjacent slaves;

[0110] Specifically, the method can compare the slave current data at the installation location to determine the abnormal line location.

[0111] Step S203, when the target line segment has the line loss anomaly, adding at least one new slave at any location on the target line segment;

[0112] Specifically, the method adopts a master-slave design, in which the slave consists of a mutual inductor unit and a storage unit, omitting the communication function with the master station and the integral calculation function of the electric energy. The real-time current data at different positions of the line can be measured and compared on-site to determine the line load condition.

[0113] Step S204, determining a line abnormal point on the target line segment where the line loss abnormality exists based on the detection current value sent by the newly added slave and the detection current values ​​of the two slaves at both ends of the target line segment, and determining the abnormal cause of the line abnormal point.

[0114] Specifically, by comparing the detection current values ​​of different slaves, the location of the line abnormality can be quickly determined, which helps to deal with the abnormal situation in a timely manner. By performing line abnormality detection and diagnosis by automated methods, the impact of human factors on the results can be reduced, and the reliability and accuracy of the diagnosis results can be improved.

[0115] An embodiment of the present invention provides a device, comprising a processor, a memory, and a program stored in the memory and executable on the processor, wherein the processor implements at least the following steps when executing the program: Step S201, receiving a detection current value sent by each of the above-mentioned slaves, wherein the above-mentioned detection current value is a detection current of the position of the above-mentioned slave on the line;

[0116] Specifically, the current value of each slave is monitored in real time, and problems or faults in the line are discovered in time, which solves the problems of being unable to call for real-time data, heavy workload, and long cycle.

[0117] Step S202, determining whether a target line segment has abnormal line loss according to the magnitude relationship between the detected current values ​​of the two adjacent slaves, the target line segment being the line between the two adjacent slaves;

[0118] Specifically, the method can compare the slave current data at the installation location to determine the abnormal line location.

[0119] Step S203, when the target line segment has the line loss anomaly, adding at least one new slave at any location on the target line segment;

[0120] Specifically, the method adopts a master-slave design, in which the slave consists of a mutual inductor unit and a storage unit, omitting the communication function with the master station and the integral calculation function of the electric energy. The real-time current data at different positions of the line can be measured and compared on-site to determine the line load condition.

[0121] Step S204, determining a line abnormal point on the target line segment where the line loss abnormality exists based on the detection current value sent by the newly added slave and the detection current values ​​of the two slaves at both ends of the target line segment, and determining the abnormal cause of the line abnormal point.

[0122] Specifically, by comparing the detection current values ​​of different slaves, the location of the line abnormality can be quickly determined, which helps to deal with the abnormal situation in a timely manner. By performing line abnormality detection and diagnosis by automated methods, the impact of human factors on the results can be reduced, and the reliability and accuracy of the diagnosis results can be improved.

[0123] The devices in this article can be servers, PCs, PADs, mobile phones, etc.

[0124] The present application also provides a computer program product, which, when executed on a data processing device, is suitable for executing a program that is initialized to have at least the following method steps: Step S201, receiving a detection current value sent by each of the above-mentioned slaves, wherein the above-mentioned detection current value is a detection current of the position of the above-mentioned slave on the line;

[0125] Specifically, the current value of each slave is monitored in real time, and problems or faults in the line are discovered in time, which solves the problems of being unable to call for real-time data, heavy workload, and long cycle.

[0126] Step S202, determining whether a target line segment has abnormal line loss according to the magnitude relationship between the detected current values ​​of the two adjacent slaves, the target line segment being the line between the two adjacent slaves;

[0127] Specifically, the method can compare the slave current data at the installation location to determine the abnormal line location.

[0128] Step S203, when the target line segment has the line loss anomaly, adding at least one new slave at any location on the target line segment;

[0129] Specifically, the method adopts a master-slave design, in which the slave consists of a mutual inductor unit and a storage unit, omitting the communication function with the master station and the integral calculation function of the electric energy. The real-time current data at different positions of the line can be measured and compared on-site to determine the line load condition.

[0130] Step S204, determining a line abnormal point on the target line segment where the line loss abnormality exists based on the detection current value sent by the newly added slave and the detection current values ​​of the two slaves at both ends of the target line segment, and determining the abnormal cause of the line abnormal point.

[0131] Specifically, by comparing the detection current values ​​of different slaves, the location of the line abnormality can be quickly determined, which helps to deal with the abnormal situation in a timely manner. By performing line abnormality detection and diagnosis by automated methods, the impact of human factors on the results can be reduced, and the reliability and accuracy of the diagnosis results can be improved.

[0132] Obviously, those skilled in the art should understand that the above modules or steps of the present invention can be implemented by a general computing device, they can be concentrated on a single computing device, or distributed on a network composed of multiple computing devices, they can be implemented by a program code executable by a computing device, so that they can be stored in a storage device and executed by the computing device, and in some cases, the steps shown or described can be executed in a different order than here, or they can be made into individual integrated circuit modules, or multiple modules or steps therein can be made into a single integrated circuit module for implementation. Thus, the present invention is not limited to any specific combination of hardware and software.

[0133] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems, or computer program products. Therefore, the present application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment in combination with software and hardware. Moreover, the present application may adopt the form of a computer program product implemented in one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) that include computer-usable program code.

[0134] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0135] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0136] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process in the computer or other programmable device. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0137] In a typical configuration, a computing device includes one or more processors (CPU), input / output interfaces, network interfaces, and memory.

[0138] The memory may include non-permanent memory in a computer-readable medium, random access memory (RAM) and / or non-volatile memory in the form of read-only memory (ROM) or flash RAM. The memory is an example of a computer-readable medium.

[0139] Computer readable media include permanent and non-permanent, removable and non-removable media that can be implemented by any method or technology to store information. Information can be computer readable instructions, data structures, program modules or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technology, compact disk read-only memory (CD-ROM), digital versatile disk (DVD) or other optical storage, magnetic cassettes, magnetic disk storage or other magnetic storage devices or any other non-transmission media that can be used to store information that can be accessed by a computing device. As defined herein, computer readable media does not include temporary computer readable media (transitory media), such as modulated data signals and carrier waves.

[0140] It should also be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, commodity or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, commodity or device. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the process, method, commodity or device including the elements.

[0141] From the above description, it can be seen that the above embodiments of the present application achieve the following technical effects:

[0142] 1) The above-mentioned method for determining line loss abnormality of the present application first receives the detection current value sent by each slave, and the detection current value is the detection current of the position of the slave on the line; then, according to the size relationship between the detection current values ​​of two adjacent slaves, it is determined whether there is a line loss abnormality in the target line segment, and the target line segment is the line between two adjacent slaves; then, if there is a line loss abnormality in the target line segment, at least one new slave is added at any point on the target line segment; finally, according to the detection current value sent by the new slave and the detection current values ​​of the two slaves at both ends of the target line segment, the line abnormal point where there is a line loss abnormality on the target line segment is determined, and the abnormal cause of the line abnormal point is determined. This method does not take a long time, can quickly measure the abnormal position of the line, does not need to communicate with the main station, does not need to integrate and calculate the electric energy data, can measure and compare the real-time current data of different positions of the line on site to determine the line load situation, and solves the problem that the main station system function supporting the low-voltage branch monitor in the prior art is not perfect, the user topology relationship needs to be manually imported, and the real-time data cannot be called for measurement, and there are large workloads and long cycles.

[0143] 2) The host of the present application comprises: a receiving unit, a first determining unit, a processing unit and a second determining unit, the receiving unit being used to receive the detection current value sent by each slave, the detection current value being the detection current of the position of the slave on the line; the first determining unit being used to determine whether there is a line loss abnormality in the target line segment according to the size relationship between the detection current values ​​of two adjacent slaves, the target line segment being the line between two adjacent slaves; the processing unit being used to add at least one new slave at any point on the target line segment when there is a line loss abnormality in the target line segment; the second determining unit being used to determine the line abnormality point on the target line segment where there is a line loss abnormality according to the detection current value sent by the new slave and the detection current values ​​of the two slaves at both ends of the target line segment, and determine the abnormal cause of the line abnormality point. The host does not take long to detect abnormal line locations quickly. It does not need to communicate with the main station or integrate and calculate electric energy data. It can measure and compare real-time current data at different line locations on-site to determine line load conditions. This solves the problem that the main station system functions that are compatible with low-voltage branch monitors in the prior art are not yet perfect, user topology relationships need to be manually imported, and real-time data cannot be called up, resulting in heavy workload and long cycles.

[0144] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A method for determining abnormal line loss, characterized in that: The method is applied to a host in a line loss abnormality determination system, the line loss abnormality determination system also includes a slave, the host and the slave are connected to each other through Zigbee communication technology and USB communication technology, and the method includes: receiving a detection current value sent by each of the slaves, wherein the detection current value is a detection current at a position of the slave on the line; Determine whether there is line loss abnormality in a target line segment according to the magnitude relationship between the detection current values ​​of two adjacent slaves, wherein the target line segment is a line between two adjacent slaves; When the line loss anomaly exists in the target line segment, adding at least one new slave at any location on the target line segment; According to the detection current value sent by the newly added slave and the detection current values ​​of the two slaves at both ends of the target line segment, a line abnormality point on the target line segment where the line loss abnormality exists is determined, and the abnormal cause of the line abnormality point is determined.

2. The method according to claim 1, characterized in that Before determining whether a target line segment has abnormal line loss according to the magnitude relationship between the detected current values ​​of two adjacent slaves, the method further includes: In the case where the target line segment is the same main line, the detection current of the slave located at the front end of the line among the two adjacent slaves is determined as a first current value, and the detection current of the slave located at the rear end of the line among the two adjacent slaves is determined as a second current value; In the case where the front part of the target segment is a main line and the rear part of the target segment is a plurality of branch lines, the detection current of the slave located on the main line is determined as the first current value, and the sum of the detection currents of the first slaves on all the branch lines is determined as the second current value, and the first slave on the branch line is the first slave arranged on the branch line in a direction from the front end of the target segment to the rear end of the target segment.

3. The method according to claim 2, characterized in that The target line segment is the same main line, and according to the magnitude relationship between the detection current values ​​of two adjacent slaves, determining whether the target line segment has line loss abnormality includes: determining a difference between the second current value and the first current value as a first difference; determining a ratio of the first difference to the second current value as a first ratio; When the first ratio is greater than or equal to a preset ratio and the duration is greater than or equal to a first preset duration, determining that the target line segment has the line loss anomaly; When the first ratio is smaller than the preset ratio, it is determined that the target line segment does not have the line loss abnormality.

4. The method according to claim 2, characterized in that: The target line segment is the same main line, and according to the magnitude relationship between the detection current values ​​of two adjacent slaves, determining whether the target line segment has line loss abnormality includes: Acquire a target mapping relationship, where the target mapping relationship represents a mapping relationship between the line transmission power and a preset difference; Determine the target line transmission power of the target line where two adjacent slaves are located; Determining a target preset difference according to the target line transmission power and the target mapping relationship; determining a difference between the second current value and the first current value as a second difference; When the second difference is greater than or equal to the target preset difference and the duration is greater than or equal to the second preset duration, it is determined that the target line segment has the line loss anomaly; When the second difference is smaller than the target preset difference, it is determined that the target line segment does not have the line loss anomaly.

5. The method according to claim 2, characterized in that: The target line segment is the same main line, and according to the magnitude relationship between the detection current values ​​of two adjacent slaves, determining whether the target line segment has line loss abnormality includes: Determine the current change rate of the target line segment within the third preset time length according to the magnitude relationship between the second current value and the first current value within the third preset time length; When the current change rate of the target line segment is always greater than or equal to the preset change rate within the third preset time period, determining that the target line segment has the line loss abnormality; When the current change rate of the target line segment within the third preset time period is less than the preset change rate, it is determined that the line loss abnormality does not exist in the target line segment.

6. The method according to claim 1, characterized in that The target line segment is the same main line, and according to the detection current value sent by the newly added slave and the detection current values ​​of the two slaves at both ends of the target line segment, a line abnormal point where the line loss abnormality exists on the target line segment is determined, and the abnormal cause of the line abnormal point is determined, including: Determine the line between the newly added slave and the slave at the front end of the line as a first sub-line, and determine the difference between the detection current value of the newly added slave and the detection current of the slave at the front end of the line as a third difference; Determine whether there is abnormal line loss on the first sub-line according to the size of the third difference; When the line loss abnormality exists on the first sub-line, at least one new slave is continuously added at any point on the first sub-line until the position of the line abnormal point and the abnormal cause of the line abnormal point are determined.

7. The method according to claim 1, characterized in that The host and the slave use an external clock signal or a trigger signal based on a high-stable crystal oscillator for data transmission, and the range of the transmission time error when the host and the slave perform data transmission is 0us to 15us.

8. A host, characterized in that: The line loss abnormality determination system includes a host and a slave, wherein the host and the slave are connected to each other through Zigbee communication technology and USB communication technology, and the host includes: A receiving unit, used for receiving a detection current value sent by each of the slaves, wherein the detection current value is a detection current at a position of the slave on the line; A first determining unit is used to determine whether there is a line loss abnormality in a target line segment according to a magnitude relationship between the detection current values ​​of two adjacent slaves, wherein the target line segment is a line between two adjacent slaves; A processing unit, configured to add at least one new slave at any location on the target line segment when the line loss anomaly exists in the target line segment; The second determination unit is used to determine the line abnormality point on the target line segment where the line loss abnormality exists, and determine the abnormality cause of the line abnormality point according to the detection current value sent by the newly added slave and the detection current values ​​of the two slaves at both ends of the target line segment.

9. A computer-readable storage medium, characterized in that: The computer-readable storage medium includes a stored program, wherein when the program is executed, the device where the computer-readable storage medium is located is controlled to execute the method for determining line loss abnormality according to any one of claims 1 to 7.

10. An electronic device, characterized in that: include: One or more processors, a memory, and one or more programs, wherein the one or more programs are stored in the memory and are configured to be executed by the one or more processors, and the one or more programs include a method for determining line loss abnormality as described in any one of claims 1 to 7.

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