CN221078918U - Series user identification system for judging abnormal power connection - Google Patents
Series user identification system for judging abnormal power connection Download PDFInfo
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- CN221078918U CN221078918U CN202321713183.2U CN202321713183U CN221078918U CN 221078918 U CN221078918 U CN 221078918U CN 202321713183 U CN202321713183 U CN 202321713183U CN 221078918 U CN221078918 U CN 221078918U
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Abstract
The utility model relates to a series-user identification system for judging abnormal power connection, which comprises the following steps: the system comprises a data terminal for reading the load of the user ammeter and a test terminal for judging the abnormal access of the user and the relationship of the user ammeter; the data terminal comprises: the data terminal communication module and the reading module are used for reading the load of the user ammeter; the test terminal comprises: the system comprises a test terminal communication module, a load module for generating load, a detection module and an MCU processor; the test terminal communication module is communicated with the data terminal communication module to acquire data of the reading module; the load module is electrically connected to the user three-plug socket; the detection module is connected to the load module to detect the zero fire voltage and the fire ground voltage of the user; the MCU processor is connected with the detection module and the test terminal communication module to judge the abnormal power connection. The utility model has the advantages of solving the problem of misjudgment of the household meter relation caused by abnormal access, still detecting the household meter relation under various faults and providing detection of various faults at one time.
Description
Technical Field
The utility model relates to the technical field of household meter testing of power systems, in particular to a series household identification system for judging abnormal power connection.
Background
Family table relationship: after urban and town resident ammeter boxes are installed in a concentrated mode, whether the corresponding relation between each ammeter installed in the concentrated mode and each actual resident is consistent with the power supply company file or not is judged. In an actual environment, the post-meter line is generally connected into the user's home in a wall-buried mode, and at this time, due to wrong identification or no effective means acceptance, a certain probability of user-meter relation errors exists. When the relationship between the user and the meter is wrong, the electricity charge used by the user can be measured to the electricity meters of other users, and disputes are easy to cause.
The existing subscriber list correspondence relation recognition technology can not recognize faults caused by subscriber access lines, so that the problems of misidentification of series subscribers, incomplete test function items and the like are caused. The technology of the patent number ZL202022481251.X is a newly built cell acceptance device, and the corresponding relation of the user list is judged by reading the data of the electric meter when the user is loaded. The application of the technology ignores the situation that the fault possibly exists on the access line, and the fault on the access line can cause the problem that the electric meter corresponding to the test user cannot record or the recording load is not full, so that misjudgment of the non-correspondence of the user meter is caused. For example, the patent number ZL201510606891 is a device and a method for identifying the relationship of the household table, and the serial household identification is realized through an identification host, an identification sub-machine, a forwarding device, a receiving device and background equipment.
Disclosure of utility model
The utility model aims to provide a series-user identification system for judging abnormal power connection so as to solve the problems in the background technology.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
A series user identification system for judging abnormal power connection comprises: the system comprises a data terminal for reading the load of the user ammeter and a test terminal for judging the abnormal access of the user and the relationship of the user ammeter;
the data terminal comprises: the data terminal communication module and the reading module are used for reading the load of the user ammeter;
The test terminal comprises: the system comprises a test terminal communication module, a load module for generating load, a detection module and an MCU processor;
The test terminal communication module is communicated with the data terminal communication module to acquire data of the reading module;
The load module is electrically connected to the user three-plug socket and is used for generating specified loads at the zero fire end and the fire ground end;
The detection module is connected to the load module to detect the zero fire voltage and the fire ground voltage of the user;
The MCU processor is connected with the detection module and the test terminal communication module to judge the abnormal power connection.
As a further scheme of the utility model: the test terminal communication module and the data terminal communication module are ZigBee wireless communication modules, lora wireless communication modules or 4G/5G communication modules.
As a further scheme of the utility model: when the test terminal communication module and the data terminal communication module are 4G/5G communication modules, data interaction is realized through the communication master station.
As a further scheme of the utility model: and the reading module obtains the load of the user ammeter through HPLC carrier communication meter reading or 485 communication meter reading.
As a further scheme of the utility model: the MCU processor is a UPD78F0526 chip.
As a further scheme of the utility model: the circuit of the detection module comprises: the load control circuit is used for controlling the load of the load module at the zero fire end or the fire ground end according to the detection of the power connection condition of the detection circuit;
As a further scheme of the utility model: the load control circuit includes: relay K1, diode D11, transistor Q9, resistor R120, resistor R121, resistor R122, capacitor C62, and capacitor C63;
One end of the resistor R120 is connected to the positive electrode of the power supply and grounded through the capacitor C62; the other end of the resistor R120 is connected to the cathode of the diode D11; the positive electrode and the negative electrode of the diode D11 are respectively connected to the relay K1, and the positive electrode of the diode D11 is connected to the C electrode of the triode Q9; the E pole of the triode Q9 is grounded; the B pole of the triode Q9 is connected with an external circuit through a resistor R121; one end of the resistor R122 is connected with the B pole of the triode Q9; the other end of the resistor R122 is grounded; one end of the capacitor C63 is connected with the B pole of the triode Q9; the other end of the capacitor C63 is grounded.
As a further scheme of the utility model: the load control circuit further includes: relay K2, diode D10, transistor Q10, resistor R117, resistor R118, resistor R119, capacitor C60, and capacitor C61;
One end of the resistor R117 is connected to the positive electrode of the power supply and grounded through the capacitor C60; the other end of the resistor R117 is connected to the cathode of the diode D10; the positive electrode and the negative electrode of the diode D10 are respectively connected to the relay K2, and the positive electrode of the diode D10 is connected to the C electrode of the triode Q10; the E pole of the triode Q10 is grounded; the B pole of the triode Q10 is connected with an external circuit through a resistor R118; one end of the resistor R119 is connected with the B pole of the triode Q10; the other end of the resistor R119 is grounded; one end of the capacitor C61 is connected with the B pole of the triode Q10; the other end of the capacitor C61 is grounded.
As a further scheme of the utility model: the MCU processor judges whether the user has a power-on result, a ground wire result, a zero line result or a live wire result according to the detection condition of the detection module;
The MCU processor judges the results of the user meter correspondence, the user meter non-correspondence, the user meter correspondence with the ground wire, the user meter non-correspondence with the ground wire, the user meter correspondence with the zero wire, the user meter non-correspondence with the zero wire, the access line virtual connection with the ground wire, the access switch abnormal tripping and the ground wire according to the user meter load obtained by the test terminal communication module.
As a further scheme of the utility model: the access line comprises the whole line from the subscriber meter outgoing line to the subscriber home electric point.
As a further scheme of the utility model: the access switch is arranged on the access line and comprises a post-meter switch and a user distribution box switch.
Compared with the prior art, the utility model has the beneficial effects that: the system has simple composition and convenient use, and solves the problem of misjudgment of the relationship of the household meter caused by abnormal access line and abnormal switch installation on the line and fault. The method can still detect the relationship of the household table under the condition of meeting various faults, and simultaneously provides the detection of the various faults at one time in the household table test work. The multiple testing works are combined into one-time work, so that the testing process is simplified, the workload is reduced, and the efficiency is improved. Therefore, the device can complete multiple testing tasks at one time with high efficiency and high quality when checking the new cell household table, and can also provide table-to-household access fault testing for the stock cell.
Other features and advantages of the present utility model will be disclosed in the following detailed description of the utility model and the accompanying drawings.
Drawings
FIG. 1 is a block diagram of a series identification system for determining abnormal power connection in accordance with the present utility model;
FIG. 2 is a schematic diagram illustrating an application of the series identification system of FIG. 1 for determining abnormal power connection;
FIG. 3 is a circuit diagram of a load module of the series identification system of FIG. 1 for determining abnormal power reception;
FIG. 4 is a load control circuit diagram of a detection module of the series identification system of FIG. 1 for determining abnormal power connection;
FIG. 5 is a detection circuit diagram of a detection module of the series identification system of FIG. 1 for determining abnormal power connection;
fig. 6 is a circuit diagram of an MCU processor of the serial identification system of fig. 1 for determining abnormal power connection.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1 to 6, in an embodiment of the utility model, a series identification system for determining abnormal power connection includes: the system comprises a data terminal for reading the load of the user ammeter and a test terminal for judging the abnormal access of the user and the relationship of the user ammeter.
The data terminal comprises: the system comprises a data terminal communication module and a reading module for reading the load of the user ammeter.
The test terminal comprises: the system comprises a test terminal communication module, a load module for generating load, a detection module and an MCU processor.
The test terminal communication module is communicated with the data terminal communication module to acquire data of the reading module.
The load module is electrically connected to the user three-plug socket and is used for generating specified loads at the zero fire end and the fire ground end.
The detection module is connected to the load module to detect the user zero fire voltage and the fire ground voltage.
The MCU processor is connected with the detection module and the test terminal communication module to judge the abnormal power connection. The MCU processor performs analysis and judgment of the abnormality and can also be called as an analysis module.
As a specific implementation mode, the test terminal communication module and the data terminal communication module are ZigBee wireless communication modules, lora wireless communication modules or 4G/5G communication modules.
As an optional implementation manner, when the test terminal communication module and the data terminal communication module are 4G/5G communication modules, data interaction is realized through the communication master station.
As a specific implementation manner, the reading module obtains the load of the user ammeter through HPLC carrier communication meter reading or 485 communication meter reading.
As a specific embodiment, the MCU processor is a UPD78F0526 chip.
The circuit of the detection module comprises: the load control circuit controls the load module to generate load at the zero fire end or the fire ground end according to the detection of the power connection condition of the detection circuit;
as a specific embodiment: the load control circuit comprises a relay K1, a diode D11, a triode Q9, a resistor R120, a resistor R121, a resistor R122, a capacitor C62 and a capacitor C63.
One end of the resistor R120 is connected to the positive electrode of the power supply and grounded through the capacitor C62; the other end of the resistor R120 is connected to the cathode of the diode D11; the positive electrode and the negative electrode of the diode D11 are respectively connected to the relay K1, and the positive electrode of the diode D11 is connected to the C electrode of the triode Q9; the E pole of the triode Q9 is grounded; the B pole of the triode Q9 is connected with an external circuit through a resistor R121; one end of the resistor R122 is connected with the B pole of the triode Q9; the other end of the resistor R122 is grounded; one end of the capacitor C63 is connected with the B pole of the triode Q9; the other end of the capacitor C63 is grounded.
The load control circuit further includes: relay K2, diode D10, transistor Q10, resistor R117, resistor R118, resistor R119, capacitor C60, and capacitor C61.
One end of the resistor R117 is connected to the positive electrode of the power supply and grounded through the capacitor C60; the other end of the resistor R117 is connected to the cathode of the diode D10; the positive electrode and the negative electrode of the diode D10 are respectively connected to the relay K2, and the positive electrode of the diode D10 is connected to the C electrode of the triode Q10; the E pole of the triode Q10 is grounded; the B pole of the triode Q10 is connected with an external circuit through a resistor R118; one end of the resistor R119 is connected with the B pole of the triode Q10; the other end of the resistor R119 is grounded; one end of the capacitor C61 is connected with the B pole of the triode Q10; the other end of the capacitor C61 is grounded.
When the relay K1 is disconnected and the relay K1 is connected, the load module is loaded at the zero fire end; when the relay K1 is connected and the relay K2 is disconnected, the load module is loaded at the fire ground end.
The MCU processor judges whether the user has a power connection result, a ground wire result, a zero line result or a fire wire result according to the detection condition of the detection module.
The MCU processor judges the results of the user meter correspondence, the user meter non-correspondence, the user meter correspondence with the ground wire, the user meter non-correspondence with the ground wire, the user meter correspondence with the zero wire, the user meter non-correspondence with the zero wire, the access line virtual connection with the ground wire, the access switch abnormal tripping and the ground wire according to the user meter load obtained by the test terminal communication module.
The access line comprises the whole line from the subscriber meter outgoing line to the subscriber home electric point. The access switch is arranged on the access line and comprises a post-meter switch and a user distribution box switch.
As a specific implementation mode, when the load module is plugged into the three-plug socket of the user, the detection module is used for detecting the zero fire voltage and the fire ground voltage. And when detecting that the voltage of the fire and the ground is normal, judging that the user has power connection. And judging that no ground wire exists when the zero thermal power voltage is detected to be normal and the fire ground has no voltage. And judging zero-free line when zero fire no voltage is detected and the fire ground voltage is normal. When no voltage is detected on the zero fire and the fire ground, no fire line is judged, and under the extreme condition, the condition that no fire line and no ground line exist is possible, and at the moment, the actual application effect in the user meter test is similar to that of the fire line, and emphasis is not made. Of course, the load module can be further designed to be connected with the ground in a resistive manner, the voltage of the live wire to the real ground can be further tested, and the live wire and the zero ground are not all shown if electricity is needed at the moment, otherwise, the live wire is not needed.
As a specific implementation mode, when the MCU processor judges that the power connection or the ground connection is not available, the load module generates larger appointed load at the zero fire end, and load current which is larger than the protection threshold value of the leakage protector and smaller than the rated load of the line is generally set, so that the situation of virtual connection of the access line and abnormal tripping of the access switch can be judged when the load occurs. And when the load occurs, the detection module detects the voltage data and instructs the reading module to read the ammeter data of the corresponding user.
As a specific implementation mode, the data terminal sends the ammeter data corresponding to the read test user to the MCU processor of the test terminal. The MCU processor judges the corresponding relation of the user list. And when the load of the read ammeter is consistent with the load generated by the load module, judging that the household meter is corresponding, and when the load of the read ammeter is inconsistent with the load generated by the load module, judging that the household meter is not corresponding, reading other ammeters to search which ammeter corresponds to the test user.
As a specific implementation mode, when the detection module detects that zero thermal power voltage disappears in the zero fire end load occurrence period, the abnormal tripping of the switch on the access line is judged. At this time, the load module cannot read the load data of the corresponding ammeter, and in principle, incorrect judgment that the household ammeter does not correspond can occur. Therefore, the MCU processor can know that the household table is not corresponding to the household table caused by abnormal tripping of the access switch through the judgment, and the household table is not corresponding to the true household table. The MCU processor gives out the result of the abnormal tripping of the access switch, avoids the misjudgment of the non-correspondence of the user table, and gives out the result of the abnormal tripping of the switch when the power is connected. And when no ground wire exists, the abnormal tripping of the switch and no ground wire result are given. The staff can quickly correct and then continue the test through the definite result. The causes of abnormal tripping of the switch include: and after the meter, the earth leakage protection switches on the user distribution box and the test points are in zero-ground reverse connection, zero lines are in multipath parallel connection, the load detection function of the load switch is invalid, and the like.
As a specific implementation mode, when the detection module detects that the zero thermal power voltage in the zero fire end load occurrence period has large-amplitude fluctuation, the MCU processor judges the virtual connection of the access line, and the fluctuation amplitude judgment condition can be set. At this time, the load data read by the reading module to the corresponding ammeter will be distorted and inconsistent with the actual load generated by the load module, and in principle, erroneous judgment that the household meter is not corresponding will also occur. Therefore, the MCU processor can know that the user list is not corresponding to the user list caused by the virtual connection of the access line, but not the user list which is true. The detection module gives a virtual connection result of the access line, avoids misjudgment that a user table does not correspond, gives the virtual connection result of the access line when the power connection exists, and gives the virtual connection and no ground result of the access line when the ground line does not exist. The staff can carry out the test after the quick correction by the definite result, and the reasons for the virtual connection of the access line include: the circuit from the back of the meter to the household electric point of the user has poor contact at the switch pile head and each connecting position.
As a specific implementation mode, when the detection module detects that the zero fire voltage during the zero fire end load is normal, the reading module can read the load data of the corresponding ammeter. And when the load data of the electric meter read by the meter reading module is consistent with the load data generated by the load module, indicating that the user table relationship corresponds. The detection module gives a result corresponding to the household table relation when the power is connected, and gives a result corresponding to the household table relation when the ground wire is in a shortage. When the load data of the electric meter is inconsistent with the load data generated by the load module, the user meter relation is not corresponding, other electric meters are read to find out which electric meter corresponds to the test user, the MCU processor gives out a result which does not correspond to the user meter relation and indicates the target electric meter which is connected in error when the electric meter is connected, and gives out a result which does not correspond to the user meter relation and indicates the target electric meter which is connected in error when the electric meter is connected in error.
As a specific implementation, when the MCU processor determines that there is no zero line, the load module generates a smaller designated load at the fire ground. Load current smaller than the protection threshold value of the leakage protector is generally set, so that the situation that the leakage protector trips due to fire-ground current when the household meter is tested, and therefore the household meter test cannot be performed is avoided. At this time, the load module can read the load data of the corresponding ammeter. When the read load data of the ammeter is consistent with the load data generated by the load module, the corresponding user table relation is indicated, and the detection module gives a result of the corresponding zero line missing of the user table relation. When the read load data of the electric meter is inconsistent with the load data generated by the load module, the user table relation is not corresponding, and other electric meters are read to find out which electric meter corresponds to the test user. The detection module gives out a result of no corresponding household meter relation and no zero line and a target ammeter which is connected in a staggered manner, so that staff can carry out household meter relation correction and ground wire defect-free correction conveniently.
As a specific implementation mode, when the MCU processor judges that no fire wire exists, the load module cannot generate load, the reading module does not work, and the detection module gives out a fire wire-free result. The staff can quickly correct and then continue the test through the definite result. Reasons for no fire wire include: the lines to the user's home appliances after the watch are not connected at the switch pile head, at each junction.
In summary, the present embodiment can determine various results such as correct subscriber list relationship, lack of ground wire, correct subscriber list relationship, lack of zero wire, incorrect subscriber list relationship, lack of ground wire, incorrect subscriber list relationship, lack of zero wire, loose connection of wiring circuit, abnormal tripping during switching-in and switching-out, and no live wire. And when the relationship between the household meters is wrong, the wrong target ammeter is indicated. The application of the technology realizes one-time test of faults possibly generated on the whole line from the meter to the home, solves the problem of misjudgment of the non-corresponding meter by judging the fault reasons, and can still accurately identify the serial households under various faults. And a plurality of test works are combined into one, so that the work flow is reduced, the workload is reduced, and the work efficiency is improved. Meanwhile, clear fault reasons are given, so that staff can carry out targeted rectification, and rectification accuracy and rectification efficiency are improved.
A method for identifying a series of users who judge abnormal power connection comprises the following steps:
A. And the low-voltage station area commercial power node is electrically connected with a reading module and is used for reading the ammeter data corresponding to the user during the user meter test.
B. And a load module is inserted into the three-plug socket of the user and is used for pertinently generating load according to the judgment result of the detection module during the user meter test.
C. After the load module is inserted into the three-plug socket of the user, the detection module preferentially detects the zero fire and fire ground voltage, and judges whether the user has the power-on, the ground-free, the zero line-free and the fire wire-free results.
C1. and when detecting that the voltage of the fire and the ground is normal, judging that the user has power connection.
C2. and judging that no ground wire exists when the zero thermal power voltage is detected to be normal and the fire ground has no voltage.
C3. and judging zero-free line when detecting zero fire no voltage and normal fire ground voltage.
C4. And judging no fire wire when no voltage exists between the fire ground and the zero fire is detected.
D. When the MCU processor judges that the power connection or the ground connection is not available, the load module generates specified heavy load at the zero fire end. And the reading module reads the load data of the electric meter corresponding to the test user at the same time to judge the corresponding relation of the user meter when the power is connected and the corresponding relation of the user meter when the ground wire is not connected. The detection module detects zero thermal power voltage simultaneously to judge whether the household meter is not corresponding due to abnormal tripping of the circuit virtual connection and the access switch.
D1. When the detection module detects zero thermal power voltage disappearance in the zero fire end load occurrence period, the abnormal tripping of the switch on the access line is judged. At this time, the load module cannot read the load data of the corresponding ammeter, and misjudgment that the household ammeter does not correspond to the user meter can occur. Therefore, the detection module can know that the user table is not corresponding to the user table caused by abnormal tripping of the access switch, but not the user table which is true. Therefore, the detection module gives the access switch abnormal tripping result, and avoids misjudgment that the user table does not correspond. And when the power is connected, the abnormal tripping result of the switch is given, and when the ground wire is not provided, the abnormal tripping of the switch and the ground wire-free result are given.
D2. When the detection module detects that the zero thermal power voltage in the zero fire end load occurrence period has large fluctuation, the virtual connection condition of the access line is judged. At this time, the load data read by the load module corresponding to the ammeter is distorted and inconsistent with the actual load generated by the load module, and erroneous judgment that the household meter is not corresponding to the load module can occur. Therefore, the detection module can know that the user table is not corresponding to the user table caused by the virtual connection of the access line, but not the true user table. Therefore, the detection module gives the virtual connection result of the access line, avoids misjudgment that the user table does not correspond, gives the virtual connection result of the access line when the power connection exists, and gives the virtual connection and the ground wire-free result of the access line when the ground wire does not exist.
D3. When the detection module detects that the zero fire voltage during the zero fire end load is normal, the load module can read the load data of the corresponding ammeter. And when the load data of the electric meter read by the meter reading module is consistent with the load data generated by the load module, indicating that the user table relationship corresponds. The detection module gives a result corresponding to the household table relation when the power is connected, and gives a result corresponding to the household table relation when the ground wire is in a shortage. When the read load data of the electric meter is inconsistent with the load data generated by the load module, the user table relation is not corresponding, and other electric meters are read to find out which electric meter corresponds to the test user. And the detection module gives out a result which does not correspond to the household meter relation and indicates the target ammeter which is connected in a wrong way when the electricity is connected, and gives out a result which does not correspond to the household meter relation and indicates the target ammeter which is connected in a wrong way when the ground wire is not connected.
In summary, when there is a power connection, the detection module gives the results of the target ammeter, the access line virtual connection, and the access switch abnormal tripping, which correspond to the household meter, do not correspond to the household meter, and are clearly misconnected. And when the ground wire is not available, the detection module gives the results of the result that the household meter corresponds to the ground wire which is not corresponding to the household meter and is in fault connection with the target ammeter, the access line is in virtual connection with the ground wire which is not in fault connection with the ground wire, and the access switch is in abnormal tripping and is in fault connection with the ground wire.
When no zero line exists, the load module generates a specified smaller load at the fire ground end, the reading module reads the load data of the electric meter corresponding to the test user at the same time to judge the corresponding relation of the household meter when the zero line is absent, and the detection module gives out a target electric meter which is not corresponding to the zero line of the household meter, is absent and is in explicit connection.
When no fire wire exists, the load module cannot generate load, the reading module does not work, and the detection module gives a fire wire-free result.
In order to more clearly illustrate the application of the technical solution of the embodiment, the following examples are given:
The reading module is electrically connected to the mains supply node at the meter box side of the low-voltage area as shown in fig. 2, and may be the total node side or the branch side of the area in practical application.
The load module is inserted into a three-plug socket in the user 1 home as shown in fig. 2, the detection module preferentially detects zero fire and fire ground voltage, and the result that the section of the three plugs from the ammeter 1 to the user 1 has power connection, no ground wire, no zero line and no fire wire is judged.
When the MCU processor judges that the user 1 has power connection or no ground wire as shown in fig. 2, the load module generates specified heavy load at the zero fire end of the three-plug socket of the user 1, and the reading module reads the load data of the ammeter 1 at the same time to judge the corresponding relation of the user meter. When the load of the ammeter 1 is consistent with the load generated by the user 1, the relationship of the user meters is indicated to be corresponding, otherwise, the relationship is not corresponding, and when the relationship is not corresponding, the load data of the ammeter 2 and the ammeter 3 shown in fig. 2 are continuously read, and the actual connection of the ammeter with the user 1 is judged. The detection module detects zero fire voltage of the user 1 three-plug socket when load occurs. And judging the virtual connection of the access line when the voltage has large fluctuation, and judging the abnormal tripping of the access switch when the voltage directly disappears. And giving comprehensive results according to the conditions during the user table test. When the power is connected, the results of the ammeter, the access line virtual connection, the access switch abnormal tripping and the like which correspond to the household meter, do not correspond to the household meter and are obviously connected in a wrong way can be given. And when the ground wire is not available, the results of the ammeter, the access circuit virtual connection and the ground wire, the access switch tripping abnormally and the ground wire are provided, wherein the ammeter corresponds to the ground wire, does not correspond to the household meter and is in fault connection with the ground wire.
When the MCU processor judges that the user 1 has no zero line as shown in fig. 2, the load module generates specified small load on the fire ground end of the three-plug socket of the user 1. The reading module reads the load data of the ammeter 1 at the same time to judge the corresponding relation of the household meters, and the detection module gives out the result that the household meters are not corresponding to the zero line missing and the target ammeter which is connected in a staggered manner is clearly shown.
When the MCU processor judges that the user 1 has no live wire as shown in fig. 2, the load module cannot generate load, the reading module does not work, and the detection module gives a live wire-free result.
The technical application of the method penetrates through the measuring points from the ammeter 1 to the user 1, covers the whole testing line, is comprehensive in testing, simplifies the original multiple tests into one test, solves the problem of misjudgment of the user meter, and can accurately identify the serial users under multiple faults.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (10)
1. The utility model provides a judge and connect unusual series home identification system which characterized in that includes: the system comprises a data terminal for reading the load of the user ammeter and a test terminal for judging the abnormal access of the user and the relationship of the user ammeter;
The data terminal comprises: the data terminal communication module and the reading module are used for reading the load of the user ammeter;
The test terminal comprises: the system comprises a test terminal communication module, a load module for generating load, a detection module and an MCU processor;
the test terminal communication module is communicated with the data terminal communication module to acquire data of the reading module;
The load module is electrically connected to the user three-plug socket and is used for generating specified loads at the zero fire end and the fire ground end;
the detection module is connected to the load module to detect zero fire voltage and fire ground voltage of a user;
And the MCU processor is connected with the detection module and the test terminal communication module to judge abnormal power connection.
2. The system for identifying a series of users who have received an electrical power abnormality according to claim 1,
The test terminal communication module and the data terminal communication module are ZigBee wireless communication modules, lora wireless communication modules or 4G/5G communication modules.
3. The system for identifying a series of users who have received an electrical power abnormality according to claim 1,
And when the 4G/5G communication module is arranged between the test terminal communication module and the data terminal communication module, data interaction is realized through the communication master station.
4. The system for identifying a series of users who have received an electrical power abnormality according to claim 1,
And the reading module obtains the load of the user ammeter through HPLC carrier communication meter reading or 485 communication meter reading.
5. The system for identifying a series of users who have received an electrical power abnormality according to claim 1,
The MCU processor is a UPD78F0526 chip.
6. The system for identifying a series of users who have received an electrical power abnormality according to claim 1,
The circuit of the detection module comprises: the load control circuit is used for controlling the load of the load module at the zero fire end or the fire ground end according to the detection of the power connection condition of the detection circuit;
The load control circuit includes: relay K1, diode D11, transistor Q9, resistor R120, resistor R121, resistor R122, capacitor C62, and capacitor C63;
One end of the resistor R120 is connected to the positive electrode of the power supply and is grounded through the capacitor C62; the other end of the resistor R120 is connected to the cathode of the diode D11; the positive electrode and the negative electrode of the diode D11 are respectively connected to the relay K1, and the positive electrode of the diode D11 is connected to the C electrode of the triode Q9; the E electrode of the triode Q9 is grounded; the B pole of the triode Q9 is connected with an external circuit through the resistor R121; one end of the resistor R122 is connected with the B pole of the triode Q9; the other end of the resistor R122 is grounded; one end of the capacitor C63 is connected with the B pole of the triode Q9; the other end of the capacitor C63 is grounded.
7. The system for identifying a series of users who have received an electrical power abnormality as claimed in claim 6,
The load control circuit further includes: relay K2, diode D10, transistor Q10, resistor R117, resistor R118, resistor R119, capacitor C60, and capacitor C61;
One end of the resistor R117 is connected to the positive electrode of the power supply and is grounded through the capacitor C60; the other end of the resistor R117 is connected to the cathode of the diode D10; the positive electrode and the negative electrode of the diode D10 are respectively connected to the relay K2, and the positive electrode of the diode D10 is connected to the C electrode of the triode Q10; the E electrode of the triode Q10 is grounded; the B pole of the triode Q10 is connected with an external circuit through the resistor R118; one end of the resistor R119 is connected with the B pole of the triode Q10; the other end of the resistor R119 is grounded; one end of the capacitor C61 is connected with the B pole of the triode Q10; the other end of the capacitor C61 is grounded.
8. The system for identifying a series of users who have received an electrical power abnormality according to claim 1,
The MCU processor judges whether a user has a power-on result, a ground wire-free result, a zero line-free result and a fire wire-free result according to the detection condition of the detection module;
The MCU processor judges that the user meter corresponds to the user meter, the user meter does not correspond to the user meter, the user meter corresponds to the ground wire, the user meter does not correspond to the ground wire the household meter corresponds to the result of lack of zero line, lack of virtual connection of access line and lack of ground wire, abnormal tripping of access switch and lack of ground wire.
9. The system for identifying a series of users who have received power abnormality according to claim 8, wherein,
The access line comprises the whole line from the user meter outgoing line to the user household electrical point.
10. The system for identifying a series of users who have received power abnormality according to claim 8, wherein,
The access switch is arranged on the access line and comprises a post-meter switch and a user distribution box switch.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116819420A (en) * | 2023-07-03 | 2023-09-29 | 杭州华春科技有限公司 | A cross-household identification method for judging abnormal power connections |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116819420A (en) * | 2023-07-03 | 2023-09-29 | 杭州华春科技有限公司 | A cross-household identification method for judging abnormal power connections |
| CN116819420B (en) * | 2023-07-03 | 2025-07-29 | 杭州华春科技有限公司 | Series user identification method for judging abnormal power connection |
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