TWI508016B - Method for electricity theft identification - Google Patents

Description

Method of stealing electricity

The present invention relates to a method for tampering positioning, and more particularly to a method for determining whether a consumer is a tampering location of a tampering user.

Stealing behavior causes a lot of power loss in the power system, and the power stealing behavior not only causes the power company to lose money, but also because the electricity stealing behavior will lead to actual electricity consumption and power company estimated electricity. There is a gap between the quantities, which makes it impossible for the power company to ensure that the power of the planned output can be used by the power grid, which causes the generator to have operational safety concerns. Since the general tampering behavior is caused by destroying or attaching the device to the meter, so that the electricity meter displays less electricity than the actual power consumption, the electric power company will prevent the tampering behavior. Install an intrusion switch on the meter or send a person to check the meter on a household basis. By dispatching personnel to check whether the intrusion switch is damaged or whether there is an attached device on the meter, it can be judged whether there is a power stealing behavior. The method of preventing electricity theft is time-consuming and labor-intensive, and the time-consuming and labor-intensive protection measures can no longer suppress the occurrence of electricity theft in a society where the power system is widely deployed.

The main purpose of the present invention is to enable the tampering positioning system to be obtained without affecting the power consumption of the power user by using the first power line, the second power line, the auxiliary power line, and the first switch of the user. The comparison value of the electric households, and then comparing the comparison value of the electric households with the electric power consumption of the electric households, can determine whether each electric household has the behavior of stealing electricity.

A method for tampering positioning according to the present invention includes "providing a tampering positioning system", "switching step" and "positioning tampering user", and providing a tampering positioning system in the "providing tampering positioning system", the tampering positioning The system has a measuring device, a power module and a plurality of power consumers. The power module has a first power line, a second power line and an auxiliary power line. The auxiliary power line is electrically connected to the second a power line, wherein the auxiliary power line and the second power line are connected in parallel, each of the power users has a first receiving end, a second receiving end, and an electric meter, and each of the first receiving ends is electrically connected to the first Each of the second receiving ends is electrically connected to the second power line, and each of the second receiving ends is electrically connected to the auxiliary power line via a first switch, wherein the first switch is in a first state and a Switching between the second states, the meter measures the amount of power used by each of the consumers, and the measuring device measures the total power consumption of the one of the consumers, and sequentially in the "switching step" The first switch of the consumer switches from the first state to the first The state is switched back to the first state, and the total power consumption measured by the measuring device is changed to calculate a comparison value of each of the consumers, and the ratio is determined according to the ratios in the “locating theft user”. The value is determined whether each of the consumers is a stealing user.

The method of the tampering positioning can correctly determine whether the user is a thief user without affecting the power supply, and can not only avoid the power loss caused by the tampering behavior, but also eliminate the thief. After the user, the electricity consumption of the electricity users can be correctly planned to maintain the electricity safety of the entire power grid.

Referring to FIG. 1 , a first embodiment of the present invention, a method 10 for tampering positioning includes “providing a tampering positioning system 11”, “determining whether there is a tampering behavior 12”, “switching step 13”, and “positioning”. Stealing users 14".

Referring to Figures 1 and 2, a tampering positioning system 100 is provided in the "Provisioning Locating System 11". The tampering positioning system 100 has a measuring device 110, a power module 120 and a plurality of consumers. The power module 120 has a first power line 121, a second power line 122, and an auxiliary power line 123. The auxiliary power line 123 is electrically connected to the second power line 122, and the auxiliary power line 123 and The second power line 122 is in parallel. Each of the consumers 130 has a first receiving end 131, a second receiving end 132, and an electric meter 133. Each of the first receiving ends 131 is electrically connected to the first power line 121, and each of the second receiving ends 132 is electrically connected. The second power line 122 is connected to the first power line 121 and the second power line 122. The second receiving end 132 is electrically connected to the auxiliary power line 123 via a first switch 134. The first switch 134 is switchable between a first state and a second state to determine whether the second receiving end 132 and the auxiliary power line 123 are turned on or off. In this embodiment, The first state of each of the first switches 134 is open, the second state is closed, and the initial states of the first switches 134 are in the first state, wherein when the first switches 134 are in the first state When switching to the second state, the second receiving end 132 is electrically connected to the auxiliary power line 123. Conversely, when each of the first switches 134 is switched from the second state to the first state, the second The receiving end 132 is disconnected from the auxiliary power line 123. The meter 133 is a digital meter used by a general consumer, and the meter 133 is used to measure the power consumption of each of the consumers 130, and the power is returned to the power company to enable the power company. Each of the consumers 130 may be charged a power usage fee based on the amount of power used by each of the consumers 130. The measuring device 110 measures a voltage difference between the first power line 121 and the second power line 122 and a current amount injected into the measuring device 110 by the second power line 122. The total electricity consumption of one of the electric households 130.

Referring to FIG. 1, a "determining whether there is a power stealing behavior 12" is performed, and if the total power consumption measured by the measuring device 110 is the sum of the power consumption measured by each of the meters 133, When the power consumption difference is greater than a certain value, it means that at least one of the power consumers 130 has the power to steal electricity, so the "switching step 13" and the "positioning power stealing user 14" are performed to locate the power stealing. user. The setting value is set based on the number of the electricity consumers 130, and if the total power consumption measured by the measuring device 110 is the sum of the power consumption measured by each of the electricity meters 133 When the power consumption difference is greater than or equal to the fixed value, it means that there is no tampering behavior. Therefore, the "determination of whether there is a power stealing behavior 12" is repeated to detect whether there is a power stealing behavior.

Referring to Figures 1, 3 and 4, in the "switching step 13", the first switch 134 of each user 130 is switched from the first state to the second state and then switched back to the first state. Referring to FIG. 3 , taking the leftmost user 130 as an example, when the first switch 134 of the user 130 switches from the first state (on) to the second state during the T ₁ period ( When the circuit is closed, the current loop formed by the first power line 121, the first receiving end 131, the second receiving end 132, and the second power line 122 is converted into the first power line 121, The first receiving end 131, the second receiving end 132, and the second power line 122 are connected in parallel with the current loop formed by the auxiliary power line 123. Therefore, the current injected into the measuring device 110 by the second power line 122 is caused by the current. The auxiliary power supply line 123 is divided and decreased, and the total power consumption measured by the measuring device 110 is changed, and a comparison value of each of the consumers 130 can be separately calculated to obtain the respective power consumption. After the comparison value of the household 130, the first switch 134 of the consumer 130 is switched from the second state (closed) to the first state ( Open), so that the measuring apparatus 110 measuring the total power of the original size of the back, in the present embodiment, the total power before and after the period T ₁ T ₁ period remain unchanged, but In actual measurement, the total power consumption may vary with time, and the present invention is not limited thereto.

In this embodiment, the comparison value of each of the consumers 130 is respectively calculating the total power consumption of the first switch 134 of the user 130 before switching from the first state to the second state. And twice the difference between the total power consumption after switching the first switch 134 of each user 130 from the first state to the second state, please refer to FIG. 4, and the third In the figure, the consumers 130 are named from the left to the right as the first consumer, the second consumer, and the third consumer, wherein the first switch 134 of the first consumer 130 When switching from on to off, the current flowing from the user 130 to the second power line 122 is decreased by the shunt of the auxiliary power line 123, and the second power line 122 is caused to flow into the measuring device 110. The current decreases, causing the total power consumption measured by the measuring device 110 to generate a difference D ₁ , and the difference D ₁ is half of the actual power consumption of the first consumer 130, and the difference is The double of D ₁ is the actual power consumption of the first consumer 130, so the comparison value of the first consumer 130 is twice the difference D ₁ , and the first one is obtained. Consumers 13 After the comparison value of 0, the first switch 134 of the first consumer 130 is switched from the second state to the first state. Then, the first switch 134 of the second consumer 130 is switched in the T ₂ period and the first switch 134 of the third consumer 130 is switched in the T ₃ period to obtain the second consumer. The comparison value of 130 and the comparison value of the third consumer 130 are the same as the first user, and therefore will not be described again. The second consumer 130 is compared. The value is twice the difference D ₂ , and the comparison value of the third consumer 130 is twice the difference D ₃ .

Referring to FIG. 1, after the comparison value of each of the consumers 130 is generated in the "switching step 13", the "positioning tampering user 14" is performed, and based on the comparison values, it is determined whether each of the consumers 130 is For tampering users, since the tampering user reduces the power consumption by tampering with the power consumption measured by the meter 133, the comparison value and the power consumption of each of the consumers 130 are compared. Whether the absolute difference between the power consumption measured by the meter 133 of the household 130 is greater than a preset value, and the preset value is determined by each of the consumers 130 The status of the meter 133 is set. If the absolute difference is greater than the preset value, the power consumption measured by the meter 133 of the user 130 is compared with the actual power consumption of the user 130. The difference is too large. In the case that the failure of the meter 133 is eliminated, the user 130 can be determined to be a power stealing user, or when only one stealing user needs to be located, the comparison is made to each of the consumers 130. The size of the value is determined as the tampering user by the value of the comparison value of each of the consumers 130. In this embodiment, the measuring device 110 can detect the actual use of each of the consumers 130 without affecting the power supply by the switching of the first switch 134 and the shunting of the auxiliary power line 123. The power is further determined whether each of the consumers 130 is a power theft user.

Referring to FIG. 5, in another embodiment, the first state of each of the first switches 134 is closed, the second state is on, and the initial states of the first switches 134 are in the first state. When the first switch 134 is switched from the first state to the second state, the second receiving end 132 is disconnected from the auxiliary power line 123. Otherwise, when the first switch 134 is configured by the first When the two states are switched to the first state, the second receiving end 132 is electrically connected to the auxiliary power line 123.

Referring to Figures 1, 6 and 7, in the "switching step 13", the first switch 134 of each user 130 is switched from the first state to the second state and then switched back to the first state. , see FIGS. 6 and 7, the leftmost of the electric door 130 as an example, when the power switch 130 of the first user 134 to switch from the first state (closed) in the period T ₁ to the second In the state (on), the current loop formed by the auxiliary power line 123 connected by the first power line 121, the first receiving end 131, the second receiving end 132, and the second power line 122 is converted into a current loop. a current loop formed by the first power line 121, the first receiving end 131, the second receiving end 132, and the second power line 122, and thus the current injected into the measuring device 110 by the second power line 122 The total power consumption measured by the measuring device 110 is changed due to the disconnection of the auxiliary power line 123, and the comparison value of each of the consumers 130 can be separately calculated. After the comparison value of the user 130, the first switch 134 of the user 130 is switched from the second state (on) to the first state. The state (closed) causes the total power consumption measured by the measuring device 110 to return to its original size.

In this embodiment, the comparison value of each of the consumers 130 is respectively calculating the total power consumption of the first switch 134 of the user 130 before switching from the first state to the second state. And comparing the difference between the total power consumption of the first switch 134 of each of the consumers 130 from the first state to the second state, please refer to FIG. 7 and the sixth In the figure, the consumers 130 are named from the left to the right as the first consumer, the second consumer, and the third consumer, wherein the first switch 134 of the first consumer 130 When switching from on to off, the current originally flowing from the user 130 to the second power line 122 rises due to the disconnection of the auxiliary power line 123, and the second power line 122 flows into the measuring device. The current of the current rise of 110 causes the total power consumption measured by the measuring device 110 to generate a difference D ₁ , and the difference D ₁ is half of the actual power consumption of the first consumer 130. The value twice of the value D ₁ is the actual power consumption of the first consumer 130, so the comparison value of the first consumer 130 is twice the difference D ₁ , and the first is obtained. Electricity users 13 After the comparison value of 0, the first switch 134 of the first consumer 130 is switched from the second state to the first state. Then, the first switch 134 of the second consumer 130 is switched in the T ₂ period and the first switch 134 of the third consumer 130 is switched in the T ₃ period to obtain the second consumer. The comparison value of 130 and the comparison value of the third consumer 130 are the same as the first user, and therefore will not be described again. The second consumer 130 is compared. The value is twice the difference D ₂ , and the comparison value of the third consumer 130 is twice the difference D ₃ . Similarly, after the comparison value of each of the consumers 130 is obtained, the comparison is performed. The "locating the thief user 14" can determine whether each of the consumers 130 is a tampering user based on the comparison value of each of the consumers 130.

Referring to FIG. 8, a second embodiment of the present invention is different from the first embodiment in that each of the consumers 130 further has a second switch 135, and the second receiving end 132 of each of the consumers. Via this The second switch 135 is electrically connected to the second power line 122. The second switch 135 is switchable between a third state and a fourth state to determine the second receiving end 132 and the second power line 122. In the embodiment, the third state is closed, the fourth state is open, and the initial states of the second switches 135 are located in the third state, wherein each of the second switches 135 When the third state (closed) is switched to the fourth state (on), the second receiving end 132 is disconnected from the second power line 122, and vice versa, when the second switch 135 is the fourth When the state (open) is switched to the third state (closed), the second receiving end 132 is electrically connected to the second power line 122. Preferably, the first switch 134 and the second switch 135 are bidirectional. The switch, when the first switch 134 is open, the second switch 135 is closed, and when the first switch 134 is closed, the second switch 135 is open.

Please refer to the figures 9, 10, 11, 12 and 13 for the switching diagram and timing diagram of the first switch 134 and the second switch 135 of the consumer 130 in the second embodiment. The first switch 134 is switched from the first state (on) to the second state (closed), and the current of the user 130 flowing from the second receiving end 132 to the second power line 122 is generated. The current power consumption measured by the measuring device 110 is measured at time t ₁ due to the closing of the first switch of the first user. Decreating, then, referring to FIG. 10, the second switch 135 is switched from the third state (closed) to the fourth state (on), between the second receiving end 132 and the second power line 122. For the cutoff, since the current flowing out of the second receiving end 132 of the user 130 completely flows into the auxiliary power line 123, and no current flows into the second power line 122, the second power line 122 flows into the measurement. current drop means 110, see FIG. 13, resulting in the measurement of the measuring device 110 to the total power due to the time t ₂ when 1 Opening the second switch of the user of electricity generated difference value falls again D _1, where D ₁ is the difference between the actual consumption of the electric door 130, see FIGS. 11, 12 and 13, then sequentially to At time t ₃ , the second switch 135 is switched from the fourth state (on) to the third state (closed), and at time t ₄ the first switch 134 is switched from the second state (closed) to The first state (on) is such that the total power consumption measured by the measuring device 110 returns to the original size, and the second user and the third user also perform the respective Switching of a switch 134 and each of the second switches 135 to generate a difference D ₂ and a difference D _{3 respectively} . In this embodiment, the comparison value of each of the consumers 130 is to be used by each of the consumers 130. The first switch 134 is switched from the first state to the total power consumption before the second state and after the first switch 134 of each consumer 130 is switched from the first state to the second state. The difference between the total power consumption, therefore, the comparison value of the first consumer 130 is the difference D ₁ , and the comparison value of the second consumer 130 is the difference D ₂ . The third consumer 130 The ratio of the difference value D _3.

Then, after determining the comparison value of each of the consumers 130, the comparison is performed by comparing the comparison value of each of the consumers 130 with the electricity meter 133 of each of the consumers 130. Whether the absolute difference between the quantities is greater than the preset value, and if the absolute difference is greater than the preset value, the amount of electricity measured by the meter 133 of the user 130 and the user 130 The difference between the actual power consumption is too large. If the power meter 133 is faulty, the user 130 can be determined to be a power stealing user, or when only one stealing user needs to be located, the comparison is used. The size of the comparison value of the electric household 130, wherein the comparison value of each of the consumers 130 is determined to be a stealing user.

Please refer to FIGS. 14 and 15 for a third embodiment of the present invention. The difference from the second embodiment is that the comparison value of each of the consumers 130 in the “switching step 13” is calculated and “positioned”. In the embodiment, the comparison value of each of the consumers 130 is used to switch the first switch 134 of the user 130 from the first state to the first state. In the second state, when the second switch 135 is switched from the third state to the fourth state, the total power consumption measured by the measuring device 110 and the remaining power consumption of the user 130 For the difference between the sum of the power consumption of the household 130, please refer to FIG. 16, which is the leftmost one of the user 130 in the "switching step 13" by the first switch 134 of the user 130. A schematic diagram of the first state switching to the second state and the second switch 135 is switched from the third state to the fourth state. Since the current of the leftmost consumer 130 is completely flowing into the auxiliary power line 123, There is no flow into the second power line 122. Therefore, the total power consumption measured by the measuring device 110 is the leftmost. The user 130 is in a state of being disconnected. Therefore, refer to FIG. 17, and the power users 130 of FIG. 16 are named from left to right as the first user and the second user. second electric door 3, wherein a first electric door 130 in a first time period T ₁ the switch 134 is switched to the second state (closed), and the second switch 135 is switched to the four state (open The total power consumption P ₁ measured by the measuring device 110 is the actual power consumption of the remaining consumers 130 after the power consumers 130 are disconnected from the first consumer 130. And the difference between the total power consumption P ₁ measured at this time and the sum of the power consumption of the remaining consumers 130 outside the first consumer 130 is the first The comparison value of the consumer 130 is used to determine the comparison value of the second consumer 130 and the comparison value of the third consumer 130 in the T ₂ and T ₃ periods, respectively.

Referring to FIG. 14, in the embodiment, the positioning tampering user 14 compares whether the comparison value of each of the consumers 130 is less than a set value, that is, represents the measuring device 110. The power consumption difference between the total power consumption and the sum of the power consumptions of the power consumers 130 can be avoided after the power consumption household 130 having the comparison value is less than the set value is cut off. The situation in which the electrical difference value is greater than the fixed value (in the case of the tampering behavior) occurs. Therefore, if the comparison value of the user 130 is less than the set value, the user 130 can be determined to be the thief user. Or, when only one tampering user is located, the size of the comparison value of each of the consumers 130 is compared, wherein the comparison value of each of the consumers 130 is a tampering user. The set value is set according to the state of the meter 133 of the user 130.

Please refer to FIG. 18, which is a fourth embodiment of the present invention. The difference from the first embodiment is that the total power consumption measured by the measuring device is established by using a mathematical model in the "providing the tampering positioning system 11". Mathematical relational expression, in the "switching step 13", the switching equation and the electric meter of each electric household are established. The measurement equation quickly locates the tampering user in the "Positioning theft user 14" with a minimum weighted flat method.

Referring to FIG. 18, in the present embodiment, the mathematical relationship of the total power consumption established in the "providing the tampering positioning system 11" is: among them, For this total electricity consumption, Estimating the amount of electricity used by one of the consumers. The error of the total power consumption is measured for the measuring device, Φ is the set of the power users, and k is the kth power user.

Next, in the "switching step 13", a switching equation and a measurement equation of the electric meter of each of the electric consumers are established, wherein the switching equation is: In order to switch the first switch of the mth power user from the first state to the second state, the measuring device measures the total power consumption, In order to switch the first switch of the mth power user from the first state to the second state, the measuring device measures the error of the total power consumption. The measurement equation is: Measuring the amount of electricity used by the meter of each consumer, The error of the meter for the kth consumer.

Finally, in the "locating theft user 14", the minimum powering method is used to solve the estimated power consumption of each user, wherein the objective function is: Where σ _PU is the standard deviation of the measuring device, and σ _k is the standard deviation of the meter of the kth consumer. Calculate the estimated power consumption of each user using the Weighted Least Square method After that, substituting into the following formula to obtain the error magnification of one of the electricity consumers: among them, After determining the error magnification of each of the consumers, determining whether the error magnification of each of the consumers is greater than an error setting value, and if the error multiplying is greater than the error setting, If the value is used, the user is a thief user, or when only one tampering user is located, the error rate of each of the consumers is compared after determining the error rate of each user. The size, and the error rate of each of the consumers is the thief user.

Please refer to FIG. 19, which is a practical application of the second embodiment of the present invention, wherein the first column is five power users in the tampering positioning system, and the second column is measured by the electricity meter of each user. The power consumption, the third column is the total power consumption measured by the measuring device. In this practical application, there are five consumers, the setting is set to 25 kW, and the preset value is set to 5 kW. And determining, in the step of determining whether there is a power stealing behavior, whether the power consumption difference between the total power consumption and the total power consumption of the power users is greater than the difference, because the power consumption The power consumption difference 63 between the total power consumption of the household 70+50+30+40+20=210 and the total power consumption 273 is greater than the difference 25, so that the behavior of stealing is determined.

And then performing a switching step of respectively switching the first switch of each user to the second state and switching the second switch to the fourth state, so that the total power consumption measured by the measuring device is generated. The change, as shown in the fourth column of Fig. 19, the total power consumption measured by the measuring device in the state in which each of the consumers is disconnected, and the total power consumption before the switching and the after switching are calculated. The difference between the total power consumption is the comparison value of the electricity user, the fifth column is the comparison value of each electricity user, and finally the comparison value of each electricity user is calculated. The absolute difference between the power consumption of each of the consumers and whether the comparison value of each of the consumers is greater than the preset value of 5, obviously, because the fifth consumer The comparison value 53.5 is greater than the preset value 5, so that the fifth consumer can be determined to be a stealing user.

Please refer to FIG. 20, which is a practical application of the third embodiment of the present invention, wherein the first column is five power users in the tampering positioning system, and the second column is measured by the electricity meter of each user. The power consumption, the third column is the total power consumption measured by the measuring device. In this practical application, there are five power users, the setting is set to 25 kW, and the setting value is set to 20 kW. In the step of determining whether there is a power stealing behavior, calculating whether the power consumption difference between the total power consumption and the total power consumption of the power users is greater than the difference, because the power users The power consumption difference 63 between the total power consumption sum 70+50+30+40+20=210 and the total power consumption amount 273 is greater than the difference value 25, so that the behavior of stealing electricity is determined.

And then performing a switching step of respectively switching the first switch of each user to the second state and switching the second switch to the fourth state, so that the total power consumption measured by the measuring device is generated. The change, as shown in the fourth column of Fig. 20, is the total power consumption measured by the measuring device in the state where each of the consumers is disconnected, and the fifth column is the rest of the households using the electric outdoor The sum of the electricity consumption is taken as the first electricity user, and the sum of the electricity consumption of the remaining electricity users is 50+30+40+20=140. Then, the ratio of each electricity user is calculated separately. For the value, that is, the difference between the fourth column and the fifth column is calculated, and the comparison value of each user is obtained, and then compared with the set value, if the comparison value of the user is If the value is less than the set value, the user can be determined to be a thief user. Obviously, since the comparison value 9.5 of the fifth user is less than the set value 25, the fifth user can be determined to steal. Electric user.

Please refer to FIG. 21, which is a practical application of the fourth embodiment of the present invention, wherein the first column is five power consumers in the tampering positioning system, and the second column is measured by the electricity meter of each user. The power consumption, the third column is the total power consumption measured by the measuring device. In this practical application, there are five consumers, the setting is set to 25 kW, and the error setting value is set to 3 And determining, in the step of determining whether there is a power stealing behavior, whether the power consumption difference between the total power consumption and the total power consumption of the power users is greater than the difference, because the power consumption The power consumption difference 63 between the total power consumption of the household 70+50+30+40+20=210 and the total power consumption 273 is greater than the difference 25, so that the behavior of stealing is determined.

In this practical application, the mathematical relationship of the total power consumption is established: among them , , , and The estimated electricity consumption for the first electricity user, the second electricity user, the third electricity user, the fourth electricity user, and the fifth electricity user, respectively. Measuring the error of the total power consumption 273 for the measuring device, and then establishing the switching equation by the total power consumption measured by each of the consumers in the switching state in the fourth column of FIG. 21 : among them, , , , , The error of the total power consumption is measured by the measuring device in each of the consumers in the switching state. The measurement equation is established by the amount of electricity measured by the electricity meter of each of the electricity consumers in the second column of Fig. 21: among them, , , , and The meter for the first user, the meter for the second user, the meter for the third user, the meter for the fourth user, and the fifth user. The meter measures the error in the amount of electricity used.

The above equations can be expressed as a matrix as follows: Then, if the standard deviation of the measuring device is 3, and the standard deviation of the electric meter of each electric household is 5, the estimated electric power of each electric household household can be calculated by the following formulas: The estimated power consumption of each of the consumers is the fifth column of Figure 21, and finally the error magnification of each user is as shown in the sixth column of Figure 18, obviously, due to the fifth The error rate of the electricity user is 8.49, which is greater than the set value of 3. Therefore, it can be determined that the fifth power user is a power stealing user.

The method of the tampering positioning can correctly determine whether the user is a thief user without affecting the power supply, and can not only avoid the power loss caused by the tampering behavior, but also eliminate the thief. After the user, the electricity consumption of the electricity users can be correctly planned to maintain the electricity safety of the entire power grid.

The scope of the present invention is defined by the scope of the appended claims, and any changes and modifications made by those skilled in the art without departing from the spirit and scope of the invention are within the scope of the present invention. .

10 Method of Stealing Positioning 11 Providing Stealing Positioning System 12 Determining Whether There Is Stealing Behavior 13 Switching Step 14 Positioning Stealing Users 100 Stealing Positioning System 110 Measuring Device 120 Power Module 121 First Power Line 122 Second Power Line 123 Auxiliary power cord 130 User 131 First receiving end 132 Second receiving end 133 Meter 134 First switch 135 Second switch

Figure 1 is a flow chart showing a method of tampering positioning in accordance with a first embodiment of the present invention. Figure 2 is a schematic illustration of a tamper-proof positioning system in accordance with a first embodiment of the present invention. Figure 3 is a schematic illustration of the tamper-evident positioning system in accordance with a first embodiment of the present invention. Figure 4 is a timing diagram of the tamper-proof positioning system in accordance with a first embodiment of the present invention. Figure 5 is a schematic illustration of a tamper-proof positioning system in accordance with an embodiment of the present invention. Figure 6 is a schematic illustration of the tamper-evident positioning system in accordance with an embodiment of the present invention. Figure 7 is a timing diagram of the tamper-proof positioning system in accordance with an embodiment of the present invention. Figure 8 is a schematic illustration of a tamper-proof positioning system in accordance with a second embodiment of the present invention. Figure 9 is a schematic illustration of the tamper-evident positioning system in accordance with a second embodiment of the present invention. Figure 10 is a schematic illustration of the tamper-evident positioning system in accordance with a second embodiment of the present invention. Figure 11 is a schematic illustration of the tamper-evident positioning system in accordance with a second embodiment of the present invention. Figure 12 is a schematic illustration of the tamper-evident positioning system in accordance with a second embodiment of the present invention. Figure 13 is a timing diagram of the tamper-proof positioning system in accordance with a second embodiment of the present invention. Figure 14 is a flow chart showing a method of tampering positioning in accordance with a third embodiment of the present invention. Figure 15 is a schematic illustration of a tamper-proof positioning system in accordance with a third embodiment of the present invention. Figure 16 is a schematic illustration of the tamper-evident positioning system in accordance with a third embodiment of the present invention. Figure 17 is a timing diagram of the tamper-proof positioning system in accordance with a third embodiment of the present invention. Figure 18 is a flow chart showing a method of tampering positioning in accordance with a fourth embodiment of the present invention. Figure 19: Related data of an actual application in accordance with a second embodiment of the present invention. Figure 20: Related data of an actual application in accordance with a third embodiment of the present invention. Figure 21: Related data of an actual application in accordance with a fourth embodiment of the present invention.

100 Stealing Positioning System 110 Measuring Device 120 Power Module 121 First Power Cord 122 Second Power Cord 123 Auxiliary Power Cord 130 Consumers 131 First Receiver 132 Second Receiver 133 Meter 134 First Switch

Claims (18)

A method for tampering positioning includes: providing a tampering positioning system, the tampering positioning system having a measuring device, a power module, and a plurality of power consumers, the power module having a first power line, a second power line and an auxiliary power line, the auxiliary power line is electrically connected to the second power line, and the auxiliary power line and the second power line are connected in parallel, and each of the power users has a first receiving end, a second receiving end and an electric meter, each of the first receiving ends is electrically connected to the first power line, each of the second receiving ends is electrically connected to the second power line, and each of the second receiving ends is connected to the first The switch is electrically connected to the auxiliary power line, and the first switch is switchable between a first state and a second state, wherein the meter measures the amount of power used by each of the consumers, and the measuring device measures the a total power consumption of one of the power users; a switching step of sequentially switching the first switch of each user from the first state to the second state and then switching back to the first state, the measuring device The total power consumption of the measurement is changed to calculate one of each of the consumers Value; and a positioning stealing the user, based on the ratio of these values is determined whether each of the household electric user stealing. The method for tampering positioning according to claim 1, wherein the measuring device measures a voltage difference between the first power line and the second power line and injects the second power line A current measurement of the measuring device measures the total power consumption of the electricity consumers. The method of claim 3, wherein the first state of each of the first switches is open, and the second state is closed, when each of the first switches is switched from the first state to In the second state, the second receiving end is electrically connected to the auxiliary power line. The method for tampering positioning according to claim 1, wherein the first state of each of the first switches is closed, and the second state is turned on, when each of the first switches is switched by the first state When the second state is reached, the second receiving end is disconnected from the auxiliary power line. The method of claim 3, further comprising a second switch, wherein the second receiving end of each of the consumers is electrically connected to the second power line via the second switch, The second switch is switchable between a third state and a fourth state, the third state is a closed state, and the fourth state is an open state, wherein each of the first switches is switched from the first state to the switching state After the second state, the second switch is switched from the third state to the fourth state, and before the first switch is switched from the second state to the first state, the second switch is The four states are switched to the third state. The method of claim 3, wherein the first switch and the second switch are bidirectional switches, and when the first switch is open, the second switch is closed, when the first When the switch is closed, the second switch is open. The method for tampering positioning according to the first, third or fourth aspect of the patent application, wherein the comparison value of each of the consumers is to switch the first switch of each user from the first state to the first state The total power consumption before the second state and the difference between the total power consumption after switching the first switch of each user from the first state to the second state. The method for tampering positioning according to claim 7, wherein in the step of locating the user, the comparison value of each user is compared with the power consumption of each user. Whether an absolute difference between the two is greater than a preset value, and if the absolute difference is greater than the preset value, the user is a stealing user. The method for tampering positioning according to claim 7, wherein in the step of locating the user, the comparison value of each of the consumers is compared, wherein each of the consumers The comparison value is the maximum value for the thief user. A method for tampering positioning as described in claim 5 or 6, wherein each of the power is used The comparison value is when the first switch of the user is switched from the first state to the second state and the second switch is switched from the third state to the fourth state, the measuring device The difference between the measured total power consumption and the sum of the power consumption of the remaining power users of the power outdoor. The method for tampering positioning according to claim 10, wherein in the step of locating the user, whether the comparison value of each of the consumers is less than a set value, if the comparison value If it is less than the set value, the user is a stealing user. The method for tampering positioning according to claim 10, wherein in the step of locating the user, the comparison value of each of the consumers is compared, wherein each of the consumers The comparison value is the minimum value for the thief user. The method for tampering positioning according to claim 1, further comprising the step of determining whether there is a tampering behavior, if the measuring device measures the total power consumption and the measurement of each meter When the power difference between the sum of the power consumptions is greater than a certain value, the switching step is performed. The method for tampering positioning according to claim 1, wherein the mathematical relationship of the total power consumption measured by the measuring device is established in the step of providing the tampering positioning system: among them, For this total electricity consumption, Estimating the amount of electricity used by one of the consumers. The error of the total power consumption is measured for the measuring device, Φ is the set of the power users, and k is the kth power user. The method for tampering positioning according to claim 14, wherein the switching equation and the measuring equation of the electric meter of each electric household are established in the switching step, and the switching equation is: among them, In order to switch the first switch of the mth power user from the first state to the second state, the measuring device measures the total power consumption, In order to switch the first switch of the mth power user from the first state to the second state, the measuring device measures the error of the total power consumption, and the measurement equation is: among them, Measuring the amount of electricity used by the meter of each consumer, The error of the meter for the kth consumer. The method for tampering positioning according to claim 15, wherein the step of locating the thief user is solved by a Weighted Least Square method, and the estimation of each user is determined. Power, where the objective function is: Where σ _PU is the standard deviation of the measuring device, and σ _k is the standard deviation of the meter of the kth consumer. For example, in the method for tampering positioning according to claim 16, wherein in the step of locating the user, the error rate of one of the consumers is obtained by the following formula: among them, After determining the error magnification of each of the consumers, determining whether the error magnification of each of the consumers is greater than an error setting value, and if the error multiplying is greater than the error setting, The value is the user who is stealing electricity. For example, in the method for tampering positioning according to claim 16, wherein in the step of locating the user, the error rate of one of the consumers is obtained by the following formula: among them, For the error magnification of each user, the error magnification of each of the consumers is determined, and the error magnification of each of the consumers is compared, wherein the error rate of each of the consumers is the largest. The value is the user who steals electricity.