CN113092855B

CN113092855B - Temperature monitoring method and device, double-core intelligent ammeter and storage medium

Info

Publication number: CN113092855B
Application number: CN202110472622.4A
Authority: CN
Inventors: 赵雪松; 尹仕红; 郭兴林; 张优俊
Original assignee: Shenzhen Power Supply Bureau Co Ltd
Current assignee: Shenzhen Power Supply Bureau Co Ltd
Priority date: 2021-04-29
Filing date: 2021-04-29
Publication date: 2023-05-02
Anticipated expiration: 2041-04-29
Also published as: CN113092855A

Abstract

The application relates to a temperature monitoring method, a temperature monitoring device, a dual-core intelligent ammeter and a storage medium. The management core can acquire temperature monitoring data including a current value and a temperature value of each phase of sub-terminals from the metering core, and monitor whether each phase of sub-terminals has a temperature abnormal event according to the temperature monitoring data of each phase of sub-terminals; under the condition that a temperature abnormal event occurs to the target phase sub-terminal, performing protection response on the target ammeter according to the type of the temperature abnormal event so as to control the switch of the target ammeter to be disconnected or send alarm information to a server; that is, ammeter in this application is including measurement core and management core, gathers binding post's temperature monitoring data through measurement core, and management core monitors double-core smart electric meter's binding post's temperature according to this temperature monitoring data to after judging that the unusual event of temperature takes place, carry out the protection response, can improve the monitoring accuracy and the temperature monitoring efficiency to binding post's temperature.

Description

Temperature monitoring method and device, double-core intelligent ammeter and storage medium

Technical Field

The application relates to the technical field of dual-core intelligent electric meters, in particular to a temperature monitoring method, a temperature monitoring device, a dual-core intelligent electric meter and a storage medium.

Background

With the development of the technology of the double-core intelligent electric meter, china gradually changes from an integrated electric meter to the double-core intelligent electric meter, namely, the legal metering function and the non-metering function of the electric meter are independently designed and operated, so that the operation reliability of the electric meter is improved. To the integral type ammeter and twin-core smart electric meter all need be connected external power source through binding post, provide the electric energy for the ammeter.

In the operation process of the ammeter, the temperature at the wiring terminal is generally increased due to various factors, and if the processing is not found in time, the wiring terminal of the ammeter can be burnt out, so that the ammeter is damaged.

In a traditional integrated ammeter, temperature data at a wiring terminal are generally collected and recorded through a metering core in the ammeter, and whether the temperature data are abnormal or not is judged; however, the conventional temperature monitoring method for the wiring terminal cannot be applied to the dual-core smart meter, and accordingly, the temperature monitoring for the wiring terminal of the dual-core smart meter cannot be realized.

Disclosure of Invention

Based on the above, it is necessary to provide a temperature monitoring method, a device, a dual-core smart meter and a storage medium capable of monitoring the temperature at the connection terminal of the dual-core smart meter.

In a first aspect, a temperature monitoring method is provided for use in a target electric meter including a terminal block including a multi-phase sub-terminal, the target electric meter including a metering core and a management core in communication, the method comprising:

the management core acquires temperature monitoring data of each phase of sub-terminals from the metering core, wherein the temperature monitoring data comprises a current value and a temperature value;

the management core monitors whether each phase of sub-terminals generate temperature abnormal events according to the temperature monitoring data of each phase of sub-terminals, wherein the temperature abnormal events comprise temperature overrun abnormal events, temperature overrun tripping abnormal events caused by current overrun, temperature rapid change abnormal events caused by temperature variation overrun and temperature imbalance abnormal events caused by temperature up-and-down fluctuation;

in the case that a temperature anomaly event occurs at the target phase sub-terminal, the management core performs a protection response on the target ammeter according to the type of the temperature anomaly event, wherein the protection response comprises the steps of controlling the switch of the target ammeter to be opened and sending alarm information to the server.

In one embodiment, the management core monitors whether a temperature anomaly occurs at each phase sub-terminal according to temperature monitoring data of each phase sub-terminal, including: respectively judging the magnitude relation between the temperature value of each phase sub-terminal and the first temperature threshold value; and under the condition that the temperature value of the target phase sub-terminal exceeds a first temperature threshold value and the duration exceeds a first time threshold value, determining that the target phase sub-terminal has an overrun abnormal event.

In one embodiment, the management core monitors whether a temperature anomaly occurs at each phase sub-terminal according to temperature monitoring data of each phase sub-terminal, including: respectively judging the magnitude relation between the temperature value of each phase sub-terminal and the second temperature threshold value, and respectively judging the magnitude relation between the current value of each phase sub-terminal and the preset current threshold value; and determining that the target phase sub-terminal has a temperature overrun tripping abnormal event under the condition that the temperature value of the target phase sub-terminal exceeds a second temperature threshold, the current value of the target phase sub-terminal exceeds the preset current threshold and the duration exceeds a second time threshold.

In one embodiment, the temperature monitoring data includes temperature values at a plurality of different moments, and the management core monitors whether a temperature anomaly occurs in each phase sub-terminal according to the temperature monitoring data of each phase sub-terminal, including: according to the temperature values of each phase sub-terminal at a plurality of different moments, respectively calculating the temperature variation of each phase sub-terminal; respectively judging the magnitude relation between the temperature variation of each phase sub-terminal and a preset variation threshold; and under the condition that the temperature change amount of the target phase sub-terminal exceeds the preset change amount threshold, determining that the temperature rapid change abnormal event occurs in the target phase sub-terminal.

In one embodiment, the management core monitors whether a temperature anomaly occurs at each phase sub-terminal according to temperature monitoring data of each phase sub-terminal, including: according to the temperature values of each phase sub-terminal at a plurality of different moments, respectively calculating a plurality of temperature variation amounts of each phase sub-terminal in continuous time; respectively judging whether the change amplitude between every two of the plurality of temperature change amounts corresponding to each phase sub-terminal exceeds a preset amplitude threshold value; and determining that the target phase sub-terminal has a temperature imbalance abnormal event under the condition that the change amplitude between every two of the plurality of temperature change amounts corresponding to the target phase sub-terminal exceeds the preset amplitude threshold value.

In one embodiment, in the case that a temperature anomaly event occurs at a target phase sub-terminal, the management core performs a protection response on the target ammeter according to the type of the temperature anomaly event, including: in the case that a temperature anomaly event occurs at the target phase sub-terminal, the management core determines the type of the temperature anomaly event occurring; in the case that the type of the temperature anomaly event is any type, the management core records the type of the temperature anomaly event and sends alarm information to the server, wherein the alarm information comprises the type of the temperature anomaly event.

In one embodiment, in the case that a temperature anomaly event occurs at a target phase sub-terminal, the management core performs a protection response on the target ammeter according to the type of the temperature anomaly event, including: in the case that the temperature anomaly event occurs at the target phase sub-terminal, the management core determines the type of the temperature anomaly event occurring; in the case that the type of the temperature abnormality is the above-mentioned temperature overrun trip abnormality, the management core controls the switch of the target ammeter to be turned off.

In one embodiment, the method further comprises: after any type of temperature abnormal event occurs to the target phase sub-terminal, the management core monitors whether the temperature of each phase sub-terminal is recovered to be normal or not according to the temperature monitoring data of each phase sub-terminal; when the temperature of each phase sub-terminal returns to normal, the recording of the temperature abnormality event is ended.

In a second aspect, there is provided a temperature monitoring device comprising:

the acquisition module is used for acquiring temperature monitoring data of each phase of sub-terminal from the metering core, wherein the temperature monitoring data comprises a current value and a temperature value;

the monitoring module is used for monitoring whether temperature abnormal events occur to each phase of sub-terminals according to the temperature monitoring data of each phase of sub-terminals, wherein the temperature abnormal events comprise temperature overrun abnormal events, temperature overrun tripping abnormal events caused by current overrun, temperature rapid change abnormal events caused by temperature variation overrun and temperature imbalance abnormal events caused by temperature up-and-down fluctuation;

And the response module is used for carrying out protection response on the target ammeter according to the type of the temperature abnormal event if the temperature abnormal event occurs at the target phase sub-terminal, wherein the protection response comprises the steps of controlling the switch of the target ammeter to be disconnected and sending alarm information to a server.

In a third aspect, there is provided a dual-core smart meter comprising a memory and a processor, the memory storing a computer program, the processor implementing the following steps when executing the computer program:

acquiring temperature monitoring data of each phase of sub-terminals from the metering core, wherein the temperature monitoring data comprises a current value and a temperature value;

according to the temperature monitoring data of each phase sub-terminal, monitoring whether each phase sub-terminal has a temperature abnormal event, wherein the temperature abnormal event comprises a temperature overrun abnormal event, a temperature overrun tripping abnormal event caused by current overrun, a temperature rapid change abnormal event caused by temperature variation overrun and a temperature imbalance abnormal event caused by temperature up-and-down fluctuation;

and under the condition that the temperature abnormal event occurs to the target phase sub-terminal, carrying out protection response on the target ammeter according to the type of the temperature abnormal event, wherein the protection response comprises the steps of controlling the switch of the target ammeter to be opened and sending alarm information to a server.

In a fourth aspect, there is provided a computer readable storage medium having stored thereon a computer program which, when executed by a processor, performs the steps of:

According to the temperature monitoring method, the device, the dual-core intelligent ammeter and the storage medium, the management core can acquire temperature monitoring data including current values and temperature values of each phase of sub-terminals from the metering core, monitor whether each phase of sub-terminals has a temperature abnormal event according to the temperature monitoring data of each phase of sub-terminals, and then perform protection response on the target ammeter according to the type of the temperature abnormal event when the target phase of sub-terminals has the temperature abnormal event so as to control the switch of the target ammeter to be disconnected or send alarm information to the server; the management core in the application can judge temperature abnormal events including temperature overrun abnormal events, temperature overrun tripping abnormal events caused by current overrun, temperature rapid change abnormal events caused by temperature variation overrun and temperature imbalance abnormal events caused by temperature up-and-down fluctuation; that is, the electric meter in the application comprises a metering core and a management core, the metering core is responsible for collecting temperature monitoring data of the wiring terminal and sending the temperature monitoring data to the management core, the management core judges whether each phase of sub-terminal of the wiring terminal has a temperature abnormal event according to the obtained temperature monitoring data of the wiring terminal, and can perform corresponding protection measures on the electric meter according to the type of the temperature abnormal event after the temperature abnormal event occurs on the target phase of sub-terminal, namely, the switch of the electric meter can be controlled to be disconnected, and alarm information is sent to a server so as to realize timely cutting off power supply connection of the electric meter, inform the server that the electric meter has a temperature abnormality, and remind a worker of maintenance as soon as possible; the temperature monitoring function to the binding post of twin-core smart electric meter has been realized to this embodiment, simultaneously, the temperature monitoring method in this application can also improve the monitoring accuracy and the temperature monitoring efficiency to the temperature of binding post department.

Drawings

FIG. 1 is a diagram of an application environment of a temperature monitoring method in one embodiment;

FIG. 2 is a flow chart of a temperature monitoring method in one embodiment;

FIG. 3 is a flow chart of a temperature monitoring method according to another embodiment;

FIG. 4 is a flow chart of a temperature monitoring method according to another embodiment;

FIG. 5 is a flow chart of a temperature monitoring method according to another embodiment;

FIG. 6 is a flow chart of a temperature monitoring method according to another embodiment;

FIG. 7 is a flow chart of a temperature monitoring method according to another embodiment;

FIG. 8 is a flow chart of a temperature monitoring method according to another embodiment;

FIG. 9 is a flow chart of a temperature monitoring method according to another embodiment;

FIG. 10 is a block diagram of a temperature monitoring device in one embodiment;

fig. 11 is an internal structural diagram of a dual-core smart meter in one embodiment.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application will be further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the present application.

The temperature monitoring method provided by the application can be applied to an application environment shown in fig. 1. The power supply 101 is connected with the ammeter 103 through the wiring terminal 102 to supply power to the ammeter 103, and the ammeter 103 can communicate with the server 104 through a network when operating normally; the connection terminal 102 may include multiple phase sub-terminals, such as a phase a, B, C, and Z; the meter 103 may include a metering core 1031 and a management core 1032, the metering core 1031 and the management core 1032 in communication via electrical connections of the interface; the metering core 1031 is responsible for collecting metering data such as legal metering data and various monitoring data in the ammeter, including but not limited to metering data such as current data, voltage data, temperature data and the like, and transmitting all collected data to the management core 1032; the management core 1032 analyzes, processes and records the data collected by the metering core 1031, and transmits the recorded data to the server 104 through a network, so as to realize data interaction between the electric meter 103 and the server 104. The server 104 may be implemented as a stand-alone server or as a server cluster of multiple servers.

In one embodiment, as shown in fig. 2, a temperature monitoring method is provided, and the method is applied to the management core in fig. 1 for illustration, and includes the following steps:

in step 201, the management core obtains temperature monitoring data of each phase sub-terminal from the metering core, wherein the temperature monitoring data comprises a current value and a temperature value.

The metering core can collect the temperature value and the current value of each phase of sub-terminal of the wiring terminal of the ammeter, and the temperature value of each phase of sub-terminal can also comprise an incoming line temperature value and an outgoing line temperature value;

in an optional implementation process of this embodiment, the metering core sends the collected metering data at the current moment to the management core, and the management core may parse the metering data according to the control and data identifier corresponding to each item of data to obtain a temperature value and a current value corresponding to each phase of sub-terminal of the connection terminal; each type of data can correspond to one control code, and under each type of data, the corresponding data of different items can respectively correspond to different data identifications, and each data collected by the metering core is distinguished through the control code and the data identifications; for example: the control code may include 01 and 02, where: 01 may represent current data, 02 may represent temperature data; the data identifier for the 02 temperature data may include 0001, 0002, 0003, 0004, 0005, 0006, 0007, 0008, which may represent, in order, an a-phase wire terminal temperature, a B-phase wire terminal temperature, a C-phase wire terminal temperature, a Z-phase wire terminal temperature.

Step 202, the management core monitors whether temperature anomaly occurs in each phase of sub-terminals according to the temperature monitoring data of each phase of sub-terminals.

The temperature abnormal event comprises a temperature overrun abnormal event, a temperature overrun tripping abnormal event caused by current overrun, a temperature rapid change abnormal event caused by temperature variation overrun and a temperature imbalance abnormal event caused by temperature up-and-down fluctuation.

In an optional implementation process of this embodiment, after the management core obtains the temperature monitoring data of each phase of sub-terminals through analysis, whether each phase of sub-terminals has a temperature abnormal event or not may be respectively determined according to the temperature value and the current value in the temperature monitoring data; and different judgment bases can be adopted for each type of temperature abnormal event, such as: when judging whether the temperature overrun abnormal event occurs to each phase of sub-terminal, judging according to the obtained temperature value of each phase of sub-terminal; when judging whether the temperature overrun tripping abnormal event occurs to each phase of sub-terminal, judging according to the obtained temperature value and current value of each phase of sub-terminal; judging whether the temperature of each phase sub-terminal has a sudden change abnormal event or a temperature imbalance abnormal event according to the acquired temperature value of each phase sub-terminal; the embodiment of the application does not limit the judgment basis for judging the temperature abnormal events of different types and does not limit the specific process of judging the temperature abnormal events according to the temperature value and/or the current value.

In step 203, in the case that a temperature anomaly event occurs at the target phase sub-terminal, the management core performs a protection response on the target ammeter according to the type of the temperature anomaly event, where the protection response includes controlling the switch of the target ammeter to be turned off and sending alarm information to the server.

The electric meter can comprise a switch for controlling the connection of the electric meter and a power supply, and the power supply provides electric energy for the electric meter when the switch is in a closed state; optionally, the ammeter in the application may use an internal switch or an external switch; the internal switch may be a load switch, and the external switch may be a circuit breaker.

In an optional implementation process of this embodiment, when the management core determines that a temperature anomaly event occurs at the target phase sub-terminal, the management core may perform a protection response on the target ammeter according to the type of the temperature anomaly event that occurs; optionally, the management core may set different protection responses for each type of temperature anomaly event in advance, or may set different protection responses for each type of temperature anomaly event occurring at different sub-terminals; for example: for the temperature overrun abnormal event, the temperature overrun abnormal event occurs in the A-phase sub-terminal and the temperature overrun abnormal event occurs in the B-phase sub-terminal, and different protection responses can be set; in addition, when different types of temperature abnormal events occur to different sub-terminals, one protection response can be set, multiple protection responses can be set, and the protection response can be set; when the management core judges that the temperature abnormal event occurs to the target phase sub-terminal, the management core can determine the protection response corresponding to the type of the temperature abnormal event occurring to the target phase sub-terminal according to the corresponding relation between the temperature abnormal event and the protection response stored in the memory in advance, and perform the next response processing according to the protection response.

In the temperature monitoring method, the management core can acquire temperature monitoring data including a current value and a temperature value of each phase of sub-terminal from the metering core, monitor whether each phase of sub-terminal has a temperature abnormal event according to the temperature monitoring data of each phase of sub-terminal, and then perform protection response on the target ammeter according to the type of the temperature abnormal event when the target phase of sub-terminal has the temperature abnormal event so as to control the switch of the target ammeter to be disconnected or send alarm information to the server; the management core in the application can judge temperature abnormal events including temperature overrun abnormal events, temperature overrun tripping abnormal events caused by current overrun, temperature rapid change abnormal events caused by temperature variation overrun and temperature imbalance abnormal events caused by temperature up-and-down fluctuation; that is, the electric meter in the application comprises a metering core and a management core, the metering core is responsible for collecting temperature monitoring data of the wiring terminal and sending the temperature monitoring data to the management core, the management core judges whether each phase of sub-terminal of the wiring terminal has a temperature abnormal event according to the obtained temperature monitoring data of the wiring terminal, and can perform corresponding protection measures on the electric meter according to the type of the temperature abnormal event after the temperature abnormal event occurs on the target phase of sub-terminal, namely, the switch of the electric meter can be controlled to be disconnected, and alarm information is sent to a server so as to realize timely cutting off power supply connection of the electric meter, inform the server that the electric meter has a temperature abnormality, and remind a worker of maintenance as soon as possible; the temperature monitoring function to the binding post of twin-core smart electric meter has been realized to this embodiment, simultaneously, the temperature monitoring method in this application can also improve the monitoring accuracy and the temperature monitoring efficiency to the temperature of binding post department.

FIG. 3 is a flow chart of a temperature monitoring method according to another embodiment. The present embodiment relates to an optional implementation process in which the management core monitors whether a temperature abnormality occurs in each phase sub-terminal according to temperature monitoring data of each phase sub-terminal. Based on the above embodiment, as shown in fig. 3, step 202 includes:

step 301, determining the magnitude relation between the temperature value of each phase sub-terminal and the first temperature threshold.

In an optional implementation process of this embodiment, the temperature value of each phase sub-terminal may include at least one of an incoming line temperature value and an outgoing line temperature value of the phase sub-terminal; and for each phase sub-terminal, judging the magnitude relation between the temperature value of the phase sub-terminal and the first temperature threshold value, and optionally, when the target phase sub-terminal comprises the incoming line temperature value and the outgoing line temperature value, judging the magnitude relation between the incoming line temperature value and the first temperature threshold value and the magnitude relation between the outgoing line temperature value and the first temperature threshold value respectively.

In step 302, when the temperature value of the target phase sub-terminal exceeds the first temperature threshold and the duration exceeds the first time threshold, it is determined that the target phase sub-terminal has an abnormal temperature overrun event.

In an optional implementation process of this embodiment, when the temperature value of the target phase sub-terminal exceeds the first temperature threshold and the duration exceeds the first time threshold, determining that the target phase sub-terminal has a temperature overrun abnormal event; wherein the duration exceeding a first time threshold may indicate that each temperature value within the duration exceeds the first temperature threshold; optionally, when one of the incoming line temperature value or the outgoing line temperature value of the target phase sub-terminal exceeds a first temperature threshold value and the duration of the temperature overrun exceeds a first time threshold value, determining that the target phase sub-terminal has a temperature overrun abnormal event; or when the incoming line temperature value and the outgoing line temperature value of the target phase sub-terminal both exceed the first temperature threshold value and the duration of the temperature overrun exceeds the first time threshold value, determining that the target phase sub-terminal has the temperature overrun abnormal event. In addition, the first temperature threshold may be represented as a lower limit of temperature overrun trigger of the connection terminal, that is, when the temperature value of the target phase sub-terminal of the connection terminal exceeds the lower limit of temperature overrun trigger, it is represented that a temperature overrun abnormal event occurs in the target phase sub-terminal; alternatively, a different temperature overrun trigger lower limit may be set for different sub-terminals, i.e. the first temperature threshold may be different for different sub-terminals of the connection terminal.

In this embodiment, the management core determines that the target phase sub-terminal has a temperature overrun abnormal event by respectively determining the magnitude relation between the temperature value of each phase sub-terminal and the first temperature threshold value, and determining that the target phase sub-terminal has a temperature overrun abnormal event when the temperature value of the target phase sub-terminal exceeds the first temperature threshold value and the duration exceeds the first time threshold value, that is, in this embodiment, the management core can respectively determine whether each phase sub-terminal has a temperature overrun abnormal event according to the temperature value and the first temperature threshold value in the temperature monitoring data of each phase sub-terminal, and can accurately determine which phase sub-terminal of the terminal has a temperature overrun abnormal event when it is determined that the terminal has a temperature overrun abnormal event, thereby improving the accuracy and the comprehensiveness of temperature monitoring of the terminal; in addition, whether the temperature overrun abnormal event occurs or not is judged through the temperature value and the temperature overrun duration of the target phase sub-terminal, the abnormal overrun condition of the temperature occurring instantly due to other factors can be avoided, the problem of inaccurate monitoring caused by the abnormal overrun condition can be solved, and the accuracy of temperature monitoring is improved.

Fig. 4 is a flow chart of a temperature monitoring method in another embodiment. The present embodiment relates to an alternative implementation process in which the management core monitors whether a temperature abnormality occurs in each phase sub-terminal according to temperature monitoring data of each phase sub-terminal. Based on the above embodiment, as shown in fig. 4, step 202 includes:

Step 401, determining the magnitude relation between the temperature value of each phase sub-terminal and the second temperature threshold value, and determining the magnitude relation between the current value of each phase sub-terminal and the preset current threshold value.

In an optional implementation process of this embodiment, the temperature value of each phase sub-terminal may include at least one of an incoming line temperature value and an outgoing line temperature value of the phase sub-terminal; for each phase sub-terminal, respectively judging the magnitude relation between the temperature value of the phase sub-terminal and the second temperature threshold value, and respectively judging the magnitude relation between the current value of each phase sub-terminal and the preset current threshold value; alternatively, the second temperature threshold may be the same as or different from the first temperature threshold; in addition, when the target phase sub-terminal comprises an incoming line temperature value and an outgoing line temperature value, the magnitude relation between the incoming line temperature value and the second temperature threshold value and the magnitude relation between the outgoing line temperature value and the second temperature threshold value can be respectively judged.

Step 402, determining that the target phase sub-terminal has a temperature overrun trip abnormal event when the temperature value of the target phase sub-terminal exceeds the second temperature threshold, the current value of the target phase sub-terminal exceeds the preset current threshold, and the duration exceeds the second time threshold.

In an optional implementation process of this embodiment, when the temperature value of the target phase sub-terminal exceeds the second temperature threshold, and the current value of the target phase sub-terminal exceeds the preset current threshold and the duration exceeds the second time threshold, it may be determined that the target phase sub-terminal has a temperature overrun trip abnormal event; wherein the duration exceeding the second time threshold may indicate that each temperature value within the duration exceeds the second temperature threshold and each current value also exceeds the preset current threshold; optionally, the second time threshold may be the same as or different from the first time threshold; optionally, one of the incoming line temperature value or the outgoing line temperature value of the target phase sub-terminal exceeds a second temperature threshold, and when the current value of the target phase sub-terminal exceeds the preset current threshold and the duration exceeds a second time threshold, determining that the target phase sub-terminal has a temperature overrun tripping abnormal event; or the incoming line temperature value and the outgoing line temperature value of the target phase sub-terminal exceed the first temperature threshold, and when the current value of the target phase sub-terminal exceeds the preset current threshold and the duration exceeds the second time threshold, the abnormal event of temperature overrun tripping of the target phase sub-terminal can be determined.

In this embodiment, the management core respectively determines a magnitude relation between a temperature value of each phase sub-terminal and a second temperature threshold value, and respectively determines a magnitude relation between a current value of each phase sub-terminal and a preset current threshold value, and determines that a temperature overrun trip abnormal event occurs in a target phase sub-terminal when the temperature value of the target phase sub-terminal exceeds the second temperature threshold value, the current value of the target phase sub-terminal exceeds the preset current threshold value, and the duration exceeds the second time threshold value; the management core in this embodiment can respectively determine whether the temperature overrun tripping abnormal event occurs in each phase of sub-terminals according to the temperature value and the second temperature threshold value in the temperature monitoring data of each phase of sub-terminals, and the current value and the preset current threshold value, so that when the temperature overrun tripping abnormal event occurs in the wiring terminal is determined, the temperature overrun tripping abnormal event occurs in which phase of sub-terminal of the wiring terminal can be accurately positioned, and the accuracy and the comprehensiveness of the temperature monitoring of the wiring terminal are improved; in addition, whether the abnormal event of the temperature overrun tripping occurs when the temperature is abnormal due to the current increase or not is judged through the temperature value, the current value and the overrun tripping duration time of the target phase sub-terminal, so that the abnormal condition that the temperature is instantaneously increased due to the instantaneous increase of the current caused by other factors can be avoided, the problem of inaccurate monitoring caused by the abnormal condition can be solved, and the accuracy of temperature monitoring is improved.

Fig. 5 is a flow chart of a temperature monitoring method in another embodiment. The present embodiment relates to an optional implementation process in which the management core monitors whether a temperature abnormality occurs in each phase sub-terminal according to temperature monitoring data of each phase sub-terminal. Based on the above embodiment, as shown in fig. 5, step 202 includes:

in step 501, the temperature change amounts of the respective phase sub-terminals are calculated from the temperature values of the respective phase sub-terminals at a plurality of different times.

The temperature monitoring data comprise a plurality of temperature values at different moments, alternatively, the metering core can collect the temperature monitoring data of each phase of the sub-terminals of the connecting terminal according to different time units or different collection frequencies, and the management core can also set different interval time to obtain the metering data of the metering core, so that the temperature monitoring data of each phase of the sub-terminals obtained by the management core comprise a plurality of temperature values at different moments; for example: the management core can be provided with a second-level timer, can acquire metering data of the metering core once in one second or n seconds, and can acquire the metering data at acquisition frequencies of 10Hz, 100Hz and 1 KHz; the data acquisition interval of the management core and the data acquisition interval of the metering core are not limited in the embodiment of the application.

In an optional implementation process of this embodiment, the management core may calculate the temperature variation of each phase sub-terminal according to the obtained temperature monitoring data of each phase sub-terminal; for example: the temperature change amount of 10 seconds may be calculated, the temperature change amount of 30 seconds may be calculated, the temperature change amount of 1 minute may be calculated, and the like, for example, the absolute value of the difference between the average temperature value in the current 10 seconds and the average temperature value in the previous 10 seconds may be used as the current temperature change amount, or the difference between the average temperature value in the current 10 seconds and the average temperature value in the previous 10 seconds may be used as the current temperature change amount. The calculation of the temperature change amount in this embodiment is not limited.

Step 502, determining the magnitude relation between the temperature variation of each phase sub-terminal and the preset variation threshold.

In step 503, when the temperature variation of the target phase sub-terminal exceeds the preset variation threshold, it is determined that the temperature variation abnormal event occurs in the target phase sub-terminal.

In this embodiment, the management core calculates the temperature variation of each phase sub-terminal according to the temperature values of each phase sub-terminal at a plurality of different moments, and determines the magnitude relation between the temperature variation of each phase sub-terminal and a preset variation threshold, and further determines that a temperature rapid abnormal event occurs in a target phase sub-terminal when the temperature variation of the target phase sub-terminal exceeds the preset variation threshold; that is, in this embodiment, the management core can determine whether a temperature spike abnormality event occurs in each phase sub-terminal according to the temperature variation of each phase sub-terminal, so that not only can the temperature spike abnormality of a specific sub-terminal be accurate when the temperature spike abnormality occurs in the connection terminal of the ammeter, but also the accuracy and efficiency of determining the temperature spike abnormality can be improved.

FIG. 6 is a flow chart of a temperature monitoring method according to another embodiment. The present embodiment relates to an optional implementation process in which the management core monitors whether a temperature abnormality occurs in each phase sub-terminal according to temperature monitoring data of each phase sub-terminal. Based on the above embodiment, as shown in fig. 6, step 202 includes:

in step 601, a plurality of temperature variation amounts of each phase sub-terminal in a continuous time are calculated according to the temperature values of each phase sub-terminal at a plurality of different times.

In an optional implementation process of this embodiment, after the management core obtains the temperature monitoring data of each phase of sub-terminals, a plurality of temperature variation amounts of each phase of sub-terminals in a continuous time may be calculated according to the historical temperature monitoring data stored in the management core, and the calculation of the temperature variation amounts may be referred to the description of step 501 and will not be repeated herein. In this embodiment, the number of the plurality of temperature change amounts is not limited.

Step 602, determining whether the variation amplitude between every two of the plurality of temperature variation amounts corresponding to the phase sub-terminals exceeds a preset amplitude threshold.

In an optional implementation process of this embodiment, after obtaining a plurality of temperature variation amounts corresponding to each phase of sub-terminals, the management core may determine whether a variation amplitude between every two of the plurality of temperature variation amounts exceeds a preset amplitude threshold; alternatively, the absolute values of the differences of the adjacent two temperature variations among the plurality of temperature variations of each phase sub-terminal may be calculated, respectively, and it may be determined whether the absolute values of the differences exceed a preset amplitude threshold.

In step 603, when the change amplitude between every two of the plurality of temperature change amounts corresponding to the target phase sub-terminals exceeds the preset amplitude threshold, it is determined that the target phase sub-terminals have abnormal temperature imbalance.

In this embodiment, the management core calculates a plurality of temperature variation amounts of each phase sub-terminal in continuous time according to temperature values of each phase sub-terminal at a plurality of different moments, and determines whether variation amplitudes between every two of the plurality of temperature variation amounts corresponding to each phase sub-terminal exceed a preset amplitude threshold value, and further determines that a temperature imbalance abnormal event occurs in a target phase sub-terminal when variation amplitudes between every two of the plurality of temperature variation amounts corresponding to the target phase sub-terminal exceed the preset amplitude threshold value; that is, in this embodiment, the management core can determine whether a temperature imbalance abnormal event occurs in each phase sub-terminal according to the temperature variation of each phase sub-terminal, so that not only can the temperature imbalance abnormal condition of a specific sub-terminal be accurately detected when the temperature imbalance abnormal condition occurs in the connection terminal of the ammeter, but also the accuracy of determining the temperature imbalance abnormal condition can be improved, and the comprehensiveness of monitoring the temperature of the connection terminal can be improved.

FIG. 7 is a flow chart of a temperature monitoring method according to another embodiment. The present embodiment relates to an alternative implementation procedure in which, in the case where a temperature anomaly event occurs at a target phase sub-terminal, a management core performs a protection response to the target ammeter according to the type of the temperature anomaly event that occurs. On the basis of the above embodiment, as shown in fig. 7, step 203 includes:

in step 701, in the case that a temperature anomaly event occurs at the target phase sub-terminal, the management core determines the type of the temperature anomaly event that occurs.

Alternatively, the types of temperature anomaly events may include a temperature overrun anomaly type, a temperature overrun trip anomaly type, a temperature drastic anomaly type, and a temperature imbalance anomaly type.

In step 702, in the case that the type of the temperature anomaly event is any type, the management core records the type of the temperature anomaly event and sends alarm information to the server, wherein the alarm information includes the type of the temperature anomaly event.

In an optional implementation process of this embodiment, after the management core determines that any type of temperature anomaly event occurs in each phase of sub-terminal according to the temperature monitoring data of each phase of sub-terminal obtained from the metering core, the temperature anomaly event may be recorded; optionally, when the temperature anomaly event is recorded, the incoming line temperature value, the outgoing line temperature value, the current value and the voltage value corresponding to the target phase sub-terminal with temperature anomaly at the temperature anomaly moment respectively, and the incoming line temperature value, the outgoing line temperature value, the current value, the voltage value and the like corresponding to other phase sub-terminals at the temperature anomaly moment respectively can be recorded; the management core can also send the recorded temperature abnormal event to the server; the management core may also send alarm information to the server, where the alarm information may also include the temperature abnormal event and the monitoring data of the corresponding sub-terminals of each phase when the temperature abnormal event occurs. Optionally, the management core may send the recorded temperature anomaly event with the preset number to the server when the recorded temperature anomaly event reaches the preset number, so that data interaction between the management core and the server may be reduced, and working efficiency of the management core may be improved.

In this embodiment, when the management core determines that a temperature anomaly event occurs at the target phase sub-terminal, the management core may determine a type of the temperature anomaly event that occurs, and when the type of the temperature anomaly event is any type, the management core may record the type of the temperature anomaly event and send temperature anomaly event alarm information including the type to the server; that is, in this embodiment, when the management core monitors the temperature of the terminal, the management core records the determined abnormal temperature event of the target phase terminal and sends the abnormal temperature event to the server, so that the server can receive the abnormal temperature information of the terminal in real time, thereby realizing real-time monitoring of the temperature of the terminal and improving the monitoring efficiency of the temperature of the terminal.

FIG. 8 is a flow chart of a temperature monitoring method according to another embodiment. The present embodiment relates to an alternative implementation procedure in which, in the case where a temperature anomaly event occurs at a target phase sub-terminal, a management core performs a protection response to the target ammeter according to the type of the temperature anomaly event that occurs. On the basis of the above embodiment, as shown in fig. 8, step 203 includes:

In step 801, in the case where the temperature anomaly occurs at the target phase sub-terminal, the management core determines the type of the temperature anomaly that occurs.

Step 802, in the case that the type of the temperature abnormal event is a temperature overrun trip abnormal event, the management core controls the switch of the target ammeter to be turned off.

In an optional implementation process of this embodiment, the management core may control the switch of the target ammeter to be turned off when determining that the type of the temperature anomaly event is the above temperature overrun trip anomaly event; optionally, the load switch of the electric meter can be controlled to be cut off under the condition that the switch of the target electric meter is an internal switch, and the circuit breaker of the electric meter can be controlled to be cut off under the condition that the switch of the target electric meter is an external switch, namely, the switching-off operation of the electric meter is realized, and the power supply connection of the electric meter is cut off.

In this embodiment, the management core determines the type of the temperature anomaly event that occurs when the temperature anomaly event occurs at the target phase sub-terminal, and controls the switch of the target ammeter to be turned off when the type of the temperature anomaly event is a temperature overrun trip anomaly event; the condition that the ammeter binding post is ultrahigh because of the excessive temperature that leads to the ammeter binding post of electric current, and then causes damages has been avoided, the protection degree to the ammeter has been improved.

In an alternative embodiment of the present application, after the switch of the control ammeter is turned off, that is, the switch is opened, the management core may correspondingly modify the switch-on/off state of the target ammeter, that is, after the switch is opened, the state may be modified into the switch-on permission state; under the condition that the state is a closing allowable state, a worker can manually close the target ammeter, and can manually close the ammeter in a key manner; and after the management core judges that the temperature of the wiring terminal of the ammeter is recovered to be normal, the switch of the target ammeter is controlled to be closed so as to realize closing, and then the power supply supplies power to the target ammeter again.

In this embodiment, the management core may correspondingly modify the opening and closing state of the target electric meter according to the protection response action, and allow the closing operation only when the state is the closing allowable state, so that malicious opening and closing operation of personnel on the target electric meter can be avoided, and the self-protection capability of the electric meter is improved.

FIG. 9 is a flow chart of a temperature monitoring method according to another embodiment. The embodiment relates to an optional implementation process of judging whether the temperature of the wiring terminal is recovered to be normal or not after the temperature abnormal event is monitored by the management core, and ending recording the temperature abnormal event after the temperature is recovered to be normal. On the basis of the above embodiment, as shown in fig. 9, the method further includes:

Step 901, after any type of temperature anomaly event occurs in the target phase sub-terminal, the management core monitors whether the temperature of each phase sub-terminal is recovered to be normal according to the temperature monitoring data of each phase sub-terminal.

In an optional implementation process of this embodiment, after the management core determines that any type of temperature anomaly event occurs in the target phase sub-terminal according to the temperature monitoring data of each phase sub-terminal, the management core records the temperature anomaly event, and then, can determine whether the temperature of each phase sub-terminal is recovered to be normal according to the temperature monitoring data of each phase sub-terminal; alternatively, whether the temperature value of each phase sub-terminal is smaller than a first temperature threshold, or smaller than a second temperature threshold, or smaller than a third temperature threshold may be determined, where the third temperature threshold may be an upper recovery limit of temperature, and the third temperature threshold may be greater than or equal to the first temperature threshold; or judging whether the current value of each phase sub-terminal is smaller than a preset current threshold value or not; whether the temperature variation of each phase sub-terminal is smaller than a preset variation threshold value can be judged respectively; it can also be determined whether the change amplitude between the two variable amounts of the plurality of temperature change amounts of each phase sub-terminal is smaller than a preset amplitude threshold value, whether the duration of temperature recovery and the duration of current recovery exceeds a preset time threshold value, and the like.

In step 902, when the temperature of each phase sub-terminal returns to normal, the recording of the temperature abnormality event is ended.

In an optional implementation process of this embodiment, in the case that a temperature anomaly event occurs in the target phase sub-terminal, it may be determined that the temperature anomaly event occurs in the connection terminal; optionally, under the condition that the temperature of each phase of sub-terminal is recovered to be normal, judging that the temperature of the wiring terminal is recovered to be normal, and ending the recording of the temperature abnormal event at the moment; the temperature of the wiring terminal can be judged to be normal under the condition that the temperature of the target phase sub-terminal is normal, and the recording of the temperature abnormal event can be finished; for example: when the A-phase sub-terminals have temperature overrun abnormal events, the temperature overrun abnormal events of the wiring terminals can be judged, recording of the temperature overrun abnormal events is started, and then after the temperature of each phase sub-terminal is recovered to be normal, recording of the temperature overrun abnormal events can be finished.

In this embodiment, after judging that any type of temperature anomaly event occurs in the target phase sub-terminal, the management core monitors whether the temperature of each phase sub-terminal is recovered to be normal according to the temperature monitoring data of each phase sub-terminal, and ends recording the temperature anomaly event when the temperature of each phase sub-terminal is recovered to be normal; in this embodiment, the management core may determine, in real time, a temperature abnormal time and a temperature normal time according to the temperature monitoring data of each phase sub-terminal, and record an abnormal event when the temperature is abnormal, and end the recording of the abnormal event when the temperature is normal, so that the temperature abnormal event recorded by the management core is more complete, and further, a worker may also clearly know the running state of the ammeter at each time according to the record of the temperature abnormal event sent to the service by the management core.

In an alternative embodiment of the present application, the management core may employ a data processing mechanism of a thread when performing temperature monitoring of the connection terminals, for example: establishing a temperature monitoring thread, an event recording thread and the like, wherein the temperature monitoring thread can acquire temperature monitoring data of each phase of sub-terminal, monitor whether a temperature abnormal event occurs to each phase of sub-terminal according to the temperature monitoring data of each phase of sub-terminal, and perform protection response on a target ammeter according to the type of the temperature abnormal event under the condition that the temperature abnormal event occurs; the event recording thread can record any type of temperature anomaly event occurring at each phase of sub-terminals. Through the data processing mechanism of the split threads, the thread resources can be saved, and the use efficiency and the data processing speed of the threads are improved.

It should be understood that, although the steps in the flowcharts of fig. 2-9 are shown in order as indicated by the arrows, these steps are not necessarily performed in order as indicated by the arrows. The steps are not strictly limited to the order of execution unless explicitly recited herein, and the steps may be executed in other orders. Moreover, at least some of the steps in fig. 2-9 may include multiple steps or stages that are not necessarily performed at the same time, but may be performed at different times, nor does the order in which the steps or stages are performed necessarily performed in sequence, but may be performed alternately or alternately with at least a portion of the steps or stages in other steps or other steps.

In one embodiment, as shown in fig. 10, there is provided a temperature monitoring apparatus comprising: an acquisition module 1001, a monitoring module 1002, and a response module 1003, wherein:

an obtaining module 1001 is configured to obtain temperature monitoring data of each phase sub-terminal from the metering core, where the temperature monitoring data includes a current value and a temperature value.

The monitoring module 1002 is configured to monitor, according to temperature monitoring data of each phase sub-terminal, whether a temperature anomaly event occurs in each phase sub-terminal, where the temperature anomaly event includes a temperature overrun anomaly event, a temperature overrun trip anomaly event caused by current overrun, a temperature drastic anomaly event caused by temperature variation overrun, and a temperature imbalance anomaly event caused by temperature up-and-down fluctuation.

And a response module 1003, configured to, if the temperature anomaly event occurs at the target phase sub-terminal, perform a protection response on the target electric meter according to the type of the temperature anomaly event, where the protection response includes controlling the switch of the target electric meter to be turned off and sending alarm information to a server.

In one embodiment, the monitoring module 1002 may include a first judging unit and a first determining unit; the first judging unit is used for judging the magnitude relation between the temperature value of each phase sub-terminal and the first temperature threshold value respectively; and the first determining unit is used for determining that the target phase sub-terminal has a temperature overrun abnormal event under the condition that the temperature value of the target phase sub-terminal exceeds a first temperature threshold value and the duration exceeds a first time threshold value.

In one embodiment, the monitoring module 1002 may include a second judging unit and a second determining unit; the second judging unit is used for respectively judging the magnitude relation between the temperature value of each phase sub-terminal and the second temperature threshold value and respectively judging the magnitude relation between the current value of each phase sub-terminal and the preset current threshold value; and the second determining unit is used for determining that the target phase sub-terminal has a temperature overrun tripping abnormal event under the condition that the temperature value of the target phase sub-terminal exceeds a second temperature threshold value, the current value of the target phase sub-terminal exceeds the preset current threshold value and the duration exceeds a second time threshold value.

In one embodiment, the temperature monitoring data includes temperature values at a plurality of different moments, and the monitoring module 1002 may include a calculating unit, a third judging unit, and a third determining unit; the computing unit is used for computing the temperature variation of each phase sub-terminal according to the temperature values of each phase sub-terminal at a plurality of different moments; the third judging unit is used for judging the magnitude relation between the temperature variation of each phase sub-terminal and the preset variation threshold value respectively; and a third determining unit, configured to determine that a temperature drastic abnormal event occurs in the target phase sub-terminal if the temperature variation of the target phase sub-terminal exceeds the preset variation threshold.

In one embodiment, the monitoring module 1002 may include a fourth determining unit and a fourth determining unit; the calculating unit is further used for calculating a plurality of temperature variation amounts of each phase sub-terminal in continuous time according to the temperature values of each phase sub-terminal at a plurality of different moments; a fourth judging unit, configured to respectively judge whether the variation amplitude between every two of the plurality of temperature variation amounts corresponding to each phase sub-terminal exceeds a preset amplitude threshold; and the fourth determining unit is used for determining that the target phase sub-terminal has a temperature imbalance abnormal event under the condition that the change amplitude between every two of a plurality of temperature change amounts corresponding to the target phase sub-terminal exceeds the preset amplitude threshold value.

In one embodiment, the response module 1003 includes a fifth determining unit, a recording unit, and a transmitting unit; wherein, the fifth determining unit is used for determining the type of the temperature abnormal event when the temperature abnormal event occurs at the target phase sub-terminal; a recording unit configured to record a temperature anomaly event of a type if the type of the temperature anomaly event is any type; and the sending unit is used for sending alarm information to the server, wherein the alarm information comprises the type of temperature abnormal event.

In one embodiment, the response module 1003 includes a control unit; the fifth determining unit is configured to determine, when the temperature anomaly event occurs at the target phase sub-terminal, a type of the temperature anomaly event that occurs; and the control unit is used for controlling the switch of the target ammeter to be opened under the condition that the type of the temperature abnormal event is the temperature overrun tripping abnormal event.

In one embodiment, the monitoring module 1002 is further configured to monitor whether the temperature of each phase sub-terminal is recovered to be normal according to the temperature monitoring data of each phase sub-terminal after any type of temperature anomaly event occurs in the target phase sub-terminal; when the temperature of each phase sub-terminal returns to normal, the recording of the temperature abnormality event is ended.

For specific limitations of the temperature monitoring device, reference may be made to the above limitations of the temperature monitoring method, and no further description is given here. The various modules in the temperature monitoring device described above may be implemented in whole or in part by software, hardware, and combinations thereof. The above modules may be embedded in hardware or may be independent of a processor in the computer device, or may be stored in software in a memory in the computer device, so that the processor may call and execute operations corresponding to the above modules.

In one embodiment, a dual-core smart meter is provided, the internal structure of which may be as shown in fig. 11. The dual-core smart meter includes a processor, a memory, and a network interface connected by a system bus. The processor of the dual-core smart meter is used for providing computing and control capabilities. The memory of the dual-core intelligent ammeter comprises a nonvolatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, computer programs, and a database. The internal memory provides an environment for the operation of the operating system and computer programs in the non-volatile storage media. The database of the dual-core intelligent ammeter is used for storing metering data of the metering core and various event data, wherein the event data comprises various fault events, various operation events and the like, and the fault events can comprise four types of temperature abnormal events and the like. The network interface of the computer device is used for communicating with an external terminal or server or master station through a network connection. The computer program is executed by a processor to implement a temperature monitoring method.

It will be appreciated by those skilled in the art that the structure shown in fig. 11 is merely a block diagram of a portion of the structure associated with the present application and is not limiting of the computer device to which the present application applies, and that a particular computer device may include more or fewer components than shown, or may combine some of the components, or have a different arrangement of components.

In one embodiment, a dual-core smart meter is provided, comprising a memory and a processor, the memory storing a computer program, the processor implementing the following steps when executing the computer program:

In one embodiment, the processor when executing the computer program further performs the steps of: respectively judging the magnitude relation between the temperature value of each phase sub-terminal and the first temperature threshold value; and under the condition that the temperature value of the target phase sub-terminal exceeds a first temperature threshold value and the duration exceeds a first time threshold value, determining that the target phase sub-terminal has an overrun abnormal event.

In one embodiment, the processor when executing the computer program further performs the steps of: respectively judging the magnitude relation between the temperature value of each phase sub-terminal and the second temperature threshold value, and respectively judging the magnitude relation between the current value of each phase sub-terminal and the preset current threshold value; and determining that the target phase sub-terminal has a temperature overrun tripping abnormal event under the condition that the temperature value of the target phase sub-terminal exceeds a second temperature threshold, the current value of the target phase sub-terminal exceeds the preset current threshold and the duration exceeds a second time threshold.

In one embodiment, the processor when executing the computer program further performs the steps of: the temperature monitoring data comprise a plurality of temperature values at different moments, and the temperature variation of each phase sub-terminal is calculated according to the temperature values of each phase sub-terminal at the different moments; respectively judging the magnitude relation between the temperature variation of each phase sub-terminal and a preset variation threshold; and under the condition that the temperature change amount of the target phase sub-terminal exceeds the preset change amount threshold, determining that the temperature rapid change abnormal event occurs in the target phase sub-terminal.

In one embodiment, the processor when executing the computer program further performs the steps of: according to the temperature values of each phase sub-terminal at a plurality of different moments, respectively calculating a plurality of temperature variation amounts of each phase sub-terminal in continuous time; respectively judging whether the change amplitude between every two of the plurality of temperature change amounts corresponding to each phase sub-terminal exceeds a preset amplitude threshold value; and determining that the target phase sub-terminal has a temperature imbalance abnormal event under the condition that the change amplitude between every two of the plurality of temperature change amounts corresponding to the target phase sub-terminal exceeds the preset amplitude threshold value.

In one embodiment, the processor when executing the computer program further performs the steps of: determining the type of the temperature abnormal event under the condition that the temperature abnormal event occurs to the target phase sub-terminal; and under the condition that the type of the temperature abnormal event is any type, recording the type of the temperature abnormal event, and sending alarm information to a server, wherein the alarm information comprises the type of the temperature abnormal event.

In one embodiment, the processor when executing the computer program further performs the steps of: in the case that the temperature abnormal event occurs at the target phase sub-terminal, determining the type of the temperature abnormal event occurring; and when the type of the temperature abnormal event is the temperature overrun tripping abnormal event, controlling the switch of the target ammeter to be opened.

In one embodiment, the processor when executing the computer program further performs the steps of: after any type of temperature abnormal event occurs to the target phase sub-terminal, monitoring whether the temperature of each phase sub-terminal is recovered to be normal or not according to the temperature monitoring data of each phase sub-terminal; when the temperature of each phase sub-terminal returns to normal, the recording of the temperature abnormality event is ended.

In one embodiment, a computer readable storage medium is provided having a computer program stored thereon, which when executed by a processor, performs the steps of:

In one embodiment, the computer program when executed by the processor further performs the steps of: respectively judging the magnitude relation between the temperature value of each phase sub-terminal and the first temperature threshold value; and under the condition that the temperature value of the target phase sub-terminal exceeds a first temperature threshold value and the duration exceeds a first time threshold value, determining that the target phase sub-terminal has an overrun abnormal event.

In one embodiment, the computer program when executed by the processor further performs the steps of: respectively judging the magnitude relation between the temperature value of each phase sub-terminal and the second temperature threshold value, and respectively judging the magnitude relation between the current value of each phase sub-terminal and the preset current threshold value; and determining that the target phase sub-terminal has a temperature overrun tripping abnormal event under the condition that the temperature value of the target phase sub-terminal exceeds a second temperature threshold, the current value of the target phase sub-terminal exceeds the preset current threshold and the duration exceeds a second time threshold.

In one embodiment, the computer program when executed by the processor further performs the steps of: the temperature monitoring data comprise a plurality of temperature values at different moments, and the temperature variation of each phase sub-terminal is calculated according to the temperature values of each phase sub-terminal at the different moments; respectively judging the magnitude relation between the temperature variation of each phase sub-terminal and a preset variation threshold; and under the condition that the temperature change amount of the target phase sub-terminal exceeds the preset change amount threshold, determining that the temperature rapid change abnormal event occurs in the target phase sub-terminal.

In one embodiment, the computer program when executed by the processor further performs the steps of: according to the temperature values of each phase sub-terminal at a plurality of different moments, respectively calculating a plurality of temperature variation amounts of each phase sub-terminal in continuous time; respectively judging whether the change amplitude between every two of the plurality of temperature change amounts corresponding to each phase sub-terminal exceeds a preset amplitude threshold value; and determining that the target phase sub-terminal has a temperature imbalance abnormal event under the condition that the change amplitude between every two of the plurality of temperature change amounts corresponding to the target phase sub-terminal exceeds the preset amplitude threshold value.

In one embodiment, the computer program when executed by the processor further performs the steps of: determining the type of the temperature abnormal event under the condition that the temperature abnormal event occurs to the target phase sub-terminal; and under the condition that the type of the temperature abnormal event is any type, recording the type of the temperature abnormal event, and sending alarm information to a server, wherein the alarm information comprises the type of the temperature abnormal event.

In one embodiment, the computer program when executed by the processor further performs the steps of: in the case that the temperature abnormal event occurs at the target phase sub-terminal, determining the type of the temperature abnormal event occurring; and when the type of the temperature abnormal event is the temperature overrun tripping abnormal event, controlling the switch of the target ammeter to be opened.

In one embodiment, the computer program when executed by the processor further performs the steps of: after any type of temperature abnormal event occurs to the target phase sub-terminal, monitoring whether the temperature of each phase sub-terminal is recovered to be normal or not according to the temperature monitoring data of each phase sub-terminal; when the temperature of each phase sub-terminal returns to normal, the recording of the temperature abnormality event is ended.

Those skilled in the art will appreciate that implementing all or part of the above described methods may be accomplished by way of a computer program stored on a non-transitory computer readable storage medium, which when executed, may comprise the steps of the embodiments of the methods described above. Any reference to memory, storage, database, or other medium used in embodiments provided herein may include at least one of non-volatile and volatile memory. The nonvolatile Memory may include Read-Only Memory (ROM), magnetic tape, floppy disk, flash Memory, optical Memory, or the like. Volatile memory can include random access memory (Random Access Memory, RAM) or external cache memory. By way of illustration, and not limitation, RAM can be in the form of a variety of forms, such as static random access memory (Static Random Access Memory, SRAM) or dynamic random access memory (Dynamic Random Access Memory, DRAM), and the like.

The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples merely represent a few embodiments of the present application, which are described in more detail and are not to be construed as limiting the scope of the invention. It should be noted that it would be apparent to those skilled in the art that various modifications and improvements could be made without departing from the spirit of the present application, which would be within the scope of the present application. Accordingly, the scope of protection of the present application is to be determined by the claims appended hereto.

Claims

1. A method of temperature monitoring for use in a target electric meter, the target electric meter including a terminal block including a multi-phase sub-terminal, the target electric meter including a metering core and a management core in communication, the method comprising:

the management core acquires metering data from the metering core, analyzes the metering data according to a control code and a data identifier corresponding to each item of data, and acquires temperature monitoring data of each phase of sub-terminals, wherein the temperature monitoring data comprises a current value and a temperature value; the control code is used for indicating current data and temperature data, and the data identifier is used for indicating temperature monitoring data corresponding to each phase of sub-terminals;

The management core monitors whether temperature abnormal events occur to each phase of sub-terminals according to temperature monitoring data of each phase of sub-terminals, wherein the temperature abnormal events comprise temperature overrun abnormal events, temperature overrun tripping abnormal events caused by current overrun, temperature rapid change abnormal events caused by temperature variation overrun and temperature imbalance abnormal events caused by temperature up-and-down fluctuation;

and if the temperature abnormal event occurs to the target phase sub-terminal, the management core performs protection response on the target ammeter according to the type of the temperature abnormal event, wherein the protection response comprises the steps of controlling the switch of the target ammeter to be disconnected and sending alarm information to a server.

2. The method of claim 1, wherein the managing core monitoring whether a temperature anomaly event occurs at each phase sub-terminal based on temperature monitoring data of each phase sub-terminal, comprising:

respectively judging the magnitude relation between the temperature value of each phase of sub-terminal and the first temperature threshold value;

and if the temperature value of the target phase sub-terminal exceeds the first temperature threshold value and the duration exceeds the first time threshold value, determining that the target phase sub-terminal has the temperature overrun abnormal event.

3. The method of claim 1, wherein the managing core monitoring whether a temperature anomaly event occurs at each phase sub-terminal based on temperature monitoring data of each phase sub-terminal, comprising:

respectively judging the magnitude relation between the temperature value of each phase of sub-terminal and the second temperature threshold value, and respectively judging the magnitude relation between the current value of each phase of sub-terminal and the preset current threshold value;

and if the temperature value of the target phase sub-terminal exceeds the second temperature threshold, the current value of the target phase sub-terminal exceeds the preset current threshold, and the duration exceeds a second time threshold, determining that the target phase sub-terminal has the abnormal event of temperature overrun tripping.

4. The method of claim 1, wherein the temperature monitoring data comprises a plurality of temperature values at different times, and wherein the managing core monitors whether a temperature anomaly event occurs at each phase sub-terminal based on the temperature monitoring data of each phase sub-terminal, comprising:

according to the temperature values of the sub-terminals of each phase at a plurality of different moments, respectively calculating the temperature variation of the sub-terminals of each phase;

respectively judging the magnitude relation between the temperature variation of each phase of sub-terminal and a preset variation threshold;

And if the temperature variation of the target phase sub-terminal exceeds the preset variation threshold, determining that the temperature rapid abnormal event occurs to the target phase sub-terminal.

5. The method of claim 4, wherein the monitoring of each phase sub-terminal for a temperature anomaly event by the management core based on temperature monitoring data for each phase sub-terminal comprises:

according to the temperature values of each phase of sub-terminal at a plurality of different moments, respectively calculating a plurality of temperature variation amounts of each phase of sub-terminal in continuous time;

respectively judging whether the change amplitude between every two of the plurality of temperature change amounts corresponding to each phase of sub-terminals exceeds a preset amplitude threshold value;

and if the change amplitude between every two of the plurality of temperature change amounts corresponding to the target phase sub-terminal exceeds the preset amplitude threshold value, determining that the target phase sub-terminal has the abnormal temperature imbalance event.

6. The method of claim 1, wherein if the temperature anomaly event occurs to the target phase sub-terminal, the management core performs a protection response to the target electricity meter according to the type of the temperature anomaly event, including:

If the temperature abnormal event occurs to the target phase sub-terminal, the management core determines the type of the temperature abnormal event;

if the type of the temperature abnormal event is any type, the management core records the type of the temperature abnormal event and sends alarm information to the server, wherein the alarm information comprises the type of the temperature abnormal event.

7. The method of claim 6, wherein if the temperature anomaly event occurs to the target phase sub-terminal, the management core performs a protection response to the target electricity meter according to the type of the temperature anomaly event, comprising:

and if the type of the temperature abnormal event is the temperature overrun tripping abnormal event, the management core controls the switch of the target ammeter to be disconnected.

8. The method of claim 7, wherein the method further comprises:

after any type of temperature abnormal event occurs to the target phase sub-terminal, the management core monitors whether the temperature of each phase sub-terminal is recovered to be normal according to the temperature monitoring data of each phase sub-terminal;

And if the temperature of each phase of sub-terminal is recovered to be normal, ending the recording of the temperature abnormal event.

9. A temperature monitoring device for use in a management core of a target electric meter, the target electric meter including a terminal block including a plurality of sub-terminals, the target electric meter including a metering core and a management core in communication, the device comprising:

the acquisition module is used for acquiring metering data from the metering core, analyzing the metering data according to a control code and a data identifier corresponding to each item of data, and acquiring temperature monitoring data of each phase of sub-terminal, wherein the temperature monitoring data comprises a current value and a temperature value; the control code is used for indicating current data and temperature data, and the data identifier is used for indicating temperature monitoring data corresponding to each phase of sub-terminals;

10. A dual-core smart meter comprising a memory and a processor, the memory storing a computer program, characterized in that the processor implements the steps of the method of any one of claims 1 to 8 when the computer program is executed.

11. A computer readable storage medium, on which a computer program is stored, characterized in that the computer program, when being executed by a processor, implements the steps of the method of any of claims 1 to 8.