CN113092855A

CN113092855A - Temperature monitoring method and device, double-core intelligent ammeter and storage medium

Info

Publication number: CN113092855A
Application number: CN202110472622.4A
Authority: CN
Inventors: 赵雪松; 尹仕红; 郭兴林; 张优俊
Original assignee: Shenzhen Power Supply Co ltd
Current assignee: Shenzhen Power Supply Co ltd
Priority date: 2021-04-29
Filing date: 2021-04-29
Publication date: 2021-07-09
Anticipated expiration: 2041-04-29
Also published as: CN113092855B

Abstract

The application relates to a temperature monitoring method and device, a double-core intelligent electric meter and a storage medium. The management core can acquire temperature monitoring data including current values and temperature values of the sub-terminals of each phase from the metering core, and monitors whether temperature abnormal events occur in the sub-terminals of each phase according to the temperature monitoring data of the sub-terminals of each phase; under the condition that a temperature abnormal event occurs at a target phase terminal, carrying out protection response on a target ammeter according to the type of the occurring temperature abnormal event so as to control the switch of the target ammeter to be switched off or send alarm information to a server; that is to say, ammeter in this application is including measurement core and management core, through measurement core collection binding post's temperature monitoring data, and the management core monitors twin-core smart electric meter's binding post's temperature according to this temperature monitoring data to after judging the temperature anomaly incident of taking place, protect the response, can improve the monitoring accuracy and the temperature monitoring efficiency of the temperature of binding post department.

Description

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

Technical Field

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

Background

With the development of the double-core intelligent electric meter technology, China gradually changes from an integrated electric meter to a 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. All need connect external power through binding post to integral type ammeter and two core smart electric meters, provide the electric energy for the ammeter.

During the operation of the electric meter, the temperature at the connection terminal is generally increased due to various factors, and if the temperature is not timely found to be processed, the connection terminal of the electric meter is burnt out, so that the electric meter is damaged.

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

Disclosure of Invention

In view of the above, it is necessary to provide a temperature monitoring method and apparatus, a two-core smart meter, and a storage medium, which can monitor the temperature at the terminal of the two-core smart meter.

In a first aspect, a temperature monitoring method is provided for use in a target electric meter, the target electric meter including a connection terminal including a plurality of sub-terminals, the target electric meter including a measurement core and a management core communicatively coupled thereto, the method including:

the management core acquires 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 management core monitors whether temperature abnormal events occur to each phase sub-terminal according to temperature monitoring data of each phase sub-terminal, wherein the temperature abnormal events comprise temperature out-of-limit abnormal events, temperature out-of-limit tripping abnormal events caused by current out-of-limit, temperature sharp change abnormal events caused by temperature change out-of-limit and temperature unbalance abnormal events caused by temperature up-down fluctuation;

and under the condition that the target phase terminal generates the temperature abnormal event, the management core carries out protection response on the target electric meter according to the type of the generated temperature abnormal event, wherein the protection response comprises the steps of controlling the switch of the target electric meter to be switched off and sending alarm information to the server.

In one embodiment, the monitoring of the temperature anomaly event of each phase sub-terminal by the management core according to the temperature monitoring data of each phase sub-terminal includes: 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 time exceeds a first time threshold value, determining that the temperature overrun abnormal event occurs in the target phase sub-terminal.

In one embodiment, the monitoring of the temperature anomaly event of each phase sub-terminal by the management core according to the temperature monitoring data of each phase sub-terminal includes: 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 a preset current threshold value; and under the conditions 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 time exceeds a second time threshold value, determining that the temperature overrun tripping abnormal event occurs in the target phase sub-terminal.

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

In one embodiment, the monitoring of the temperature anomaly event of each phase sub-terminal by the management core according to the temperature monitoring data of each phase sub-terminal includes: respectively 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; respectively judging whether the variation amplitude between every two of a plurality of temperature variation amounts corresponding to each phase of sub-terminals exceeds a preset amplitude threshold value; and determining that the target phase terminal has a temperature imbalance abnormal event under the condition that the variation amplitude between every two of the temperature variation amounts corresponding to the target phase terminal exceeds the preset amplitude threshold.

In one embodiment, in the case that a temperature abnormal event occurs at the target phase terminal, the management core performs a protection response on the target electricity meter according to the type of the occurred temperature abnormal event, including: in the case where a temperature abnormality occurs at the target phase terminal, the management core determines the type of the temperature abnormality that has occurred; and in the case that 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.

In one embodiment, in the case that a temperature abnormal event occurs at the target phase terminal, the management core performs a protection response on the target electricity meter according to the type of the occurred temperature abnormal event, including: in the case where the temperature abnormality occurs at the target phase terminal, the management core determines the type of the temperature abnormality that has occurred; if the type of the temperature abnormal event is the temperature overrun trip abnormal event, the management core controls the switch of the target electricity meter 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 abnormal event is finished.

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

the acquisition module is used for acquiring temperature monitoring data of each phase sub-terminal from the metering core, and 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 sub-terminal according to temperature monitoring data of each phase sub-terminal, wherein the temperature abnormal events comprise temperature overrun abnormal events, temperature overrun tripping abnormal events caused by current overrun, temperature drastic abnormal events caused by temperature variation overrun and temperature unbalance abnormal events caused by temperature 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 terminal, wherein the protection response comprises the steps of controlling the switch of the target ammeter to be switched off and sending alarm information to a server.

In a third aspect, a two-core smart meter is provided, which includes a memory and a processor, wherein the memory stores a computer program, and the processor implements the following steps when executing the computer program:

acquiring 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;

monitoring whether temperature abnormal events occur to each phase sub-terminal according to temperature monitoring data of each phase sub-terminal, wherein the temperature abnormal events comprise temperature out-of-limit abnormal events, temperature out-of-limit tripping abnormal events caused by current out-of-limit, temperature sharp change abnormal events caused by temperature change out-of-limit and temperature unbalance abnormal events caused by temperature up-down fluctuation;

and under the condition that the target phase terminal generates the temperature abnormal event, carrying out protection response on the target ammeter according to the type of the generated temperature abnormal event, wherein the protection response comprises the steps of controlling the switch of the target ammeter to be switched off 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 and device, the two-core intelligent ammeter and the storage medium, the management core can acquire temperature monitoring data including current values and temperature values of all the phase sub-terminals from the metering core, and monitors whether temperature abnormal events occur in all the phase sub-terminals according to the temperature monitoring data of all the phase sub-terminals, and then, under the condition that the temperature abnormal events occur in the target phase sub-terminals, protection response is carried out on the target ammeter according to the types of the temperature abnormal events, so that the switch of the target ammeter is controlled to be turned off or alarm information is sent to the server; the management core can judge temperature abnormal events, including temperature overrun abnormal events, temperature overrun tripping abnormal events caused by current overrun, temperature sudden change abnormal events caused by temperature variation overrun and temperature unbalance abnormal events caused by temperature fluctuation; that is to say, the ammeter in the application comprises a metering core and a management core, wherein the metering core is responsible for collecting temperature monitoring data of a wiring terminal and sending the temperature monitoring data to the management core, the management core judges whether temperature abnormal events occur to each phase terminal of the wiring terminal according to the obtained temperature monitoring data of the wiring terminal, and can perform corresponding protection measures on the ammeter according to the type of the temperature abnormal events after the temperature abnormal events occur to a target phase terminal, namely, the management core can control the switch of the ammeter to be switched off and send alarm information to a server so as to cut off power supply connection of the ammeter in time and inform the server that the ammeter has temperature abnormality and remind a worker to maintain and process as soon as possible; the temperature monitoring function of the wiring terminal of the double-core intelligent electric meter is achieved, and meanwhile the temperature monitoring method can also improve the monitoring accuracy and the temperature monitoring efficiency of the temperature at the wiring terminal.

Drawings

FIG. 1 is a diagram of an exemplary temperature monitoring system;

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

FIG. 3 is a schematic flow chart of a temperature monitoring method in another embodiment;

FIG. 4 is a schematic flow chart of a temperature monitoring method in another embodiment;

FIG. 5 is a schematic flow chart of a temperature monitoring method in another embodiment;

FIG. 6 is a schematic flow chart of a temperature monitoring method in another embodiment;

FIG. 7 is a schematic flow chart of a temperature monitoring method in another embodiment;

FIG. 8 is a schematic flow chart of a temperature monitoring method in another embodiment;

FIG. 9 is a schematic flow chart of a temperature monitoring method in another embodiment;

FIG. 10 is a block diagram showing the structure of a temperature monitoring device according to an embodiment;

fig. 11 is an internal structural view of the two-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 is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

The temperature monitoring method provided by the application can be applied to the application environment shown in fig. 1. The power supply 101 is connected with the electric meter 103 through a wiring terminal 102 to supply power to the electric meter 103, and the electric meter 103 can communicate with the server 104 through a network when running normally; the connection terminal 102 may include a plurality of sub-terminals, such as a phase a, a phase B, a phase C, and a phase Z; the electricity meter 103 may include a metering core 1031 and a management core 1032, the metering core 1031 and the management core 1032 being in communication by electrical connection of the interfaces; the metering core 1031 is responsible for collecting metering data such as legal metering data and various monitoring data in the electric meter, including but not limited to current data, voltage data, temperature data and the like, and sending all the collected data to the management core 1032; the management core 1032 analyzes, processes and records the data collected by the metering core 1031, and sends the recorded data to the server 104 through the 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 comprised of multiple servers.

In one embodiment, as shown in fig. 2, a temperature monitoring method is provided, which is illustrated by taking the method as an example applied to the management core in fig. 1, and comprises the following steps:

step 201, the management core acquires 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 acquire a temperature value and a current value of each phase sub-terminal of a wiring terminal of the ammeter, and the temperature value of each phase 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 time to the management core, and the management core may analyze the metering data according to the control code and the data identifier corresponding to each item of data to obtain a temperature value and a current value of each phase sub-terminal corresponding to 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 identifiers, and the data collected by the metering core are distinguished through the control codes and the data identifiers; for example: the control code may include 01 and 02, wherein: 01 may represent current data, 02 may represent temperature data; for data identification under 02 temperature data, 0001, 0002, 0003, 0004, 0005, 0006, 0007 and 0008 can be included, and the temperature of the wire connecting terminal for the phase A, the temperature of the wire connecting terminal for the phase B, the temperature of the wire connecting terminal for the phase C, the temperature of the wire connecting terminal for the phase Z and the temperature of the wire connecting terminal for the phase Z can be represented in.

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

The temperature abnormal events comprise temperature overrun abnormal events, temperature overrun tripping abnormal events caused by current overrun, temperature sudden change abnormal events caused by temperature variation overrun and temperature unbalance abnormal events caused by temperature fluctuation.

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

And step 203, under the condition that the temperature abnormal event occurs at the target phase terminal, the management core carries out protection response on the target electric meter according to the type of the temperature abnormal event, wherein the protection response comprises the steps of controlling the switch of the target electric meter to be switched off and sending alarm information to a server.

The electric meter can comprise a switch for controlling the on-off 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 electric meter in the application can adopt an internal switch and can also adopt an external switch; the built-in switch can adopt a load switch, and the external switch can adopt a breaker.

In an optional implementation process of this embodiment, the management core may perform protection response on the target electric meter according to the type of the temperature abnormal event when determining that the temperature abnormal event occurs at the target phase terminal; optionally, the management core may set different protection responses for each type of temperature abnormal event in advance, or may set different protection responses for each type when a temperature abnormal event occurs at different phase terminals; for example: for the temperature overrun abnormal event, the temperature overrun abnormal event of the phase A sub terminal and the temperature overrun abnormal event of the phase B sub terminal can be set different protection responses; in addition, when different types of temperature abnormal events occur to different phase terminals, one protection response can be set, multiple protection responses can be set, and the protection response can be not set; when the management core judges that the temperature abnormal event occurs in the target phase sub-terminal, the management core can determine the protection response corresponding to the type of the temperature abnormal event occurring in 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 response processing of the next step according to the protection response.

In the temperature monitoring method, the management core can acquire temperature monitoring data including current values and temperature values of each phase sub-terminal from the metering core, and monitor whether each phase sub-terminal generates a temperature abnormal event or not according to the temperature monitoring data of each phase sub-terminal, and then, under the condition that the target phase sub-terminal generates the temperature abnormal event, the management core performs protection response on the target ammeter according to the type of the generated temperature abnormal event so as to control the switch of the target ammeter to be switched off or send alarm information to the server; the management core can judge temperature abnormal events, including temperature overrun abnormal events, temperature overrun tripping abnormal events caused by current overrun, temperature sudden change abnormal events caused by temperature variation overrun and temperature unbalance abnormal events caused by temperature fluctuation; that is to say, the ammeter in the application comprises a metering core and a management core, wherein the metering core is responsible for collecting temperature monitoring data of a wiring terminal and sending the temperature monitoring data to the management core, the management core judges whether temperature abnormal events occur to each phase terminal of the wiring terminal according to the obtained temperature monitoring data of the wiring terminal, and can perform corresponding protection measures on the ammeter according to the type of the temperature abnormal events after the temperature abnormal events occur to a target phase terminal, namely, the management core can control the switch of the ammeter to be switched off and send alarm information to a server so as to cut off power supply connection of the ammeter in time and inform the server that the ammeter has temperature abnormality and remind a worker to maintain and process as soon as possible; the temperature monitoring function of the wiring terminal of the double-core intelligent electric meter is achieved, and meanwhile the temperature monitoring method can also improve the monitoring accuracy and the temperature monitoring efficiency of the temperature at the wiring terminal.

Fig. 3 is a schematic flow chart of a temperature monitoring method in another embodiment. The embodiment relates to one optional implementation process of monitoring whether the temperature abnormal event occurs in each phase sub-terminal or not by the management core according to the temperature monitoring data of each phase sub-terminal. On the basis of the above embodiment, as shown in fig. 3, step 202 includes:

step 301, respectively determining the magnitude relation between the temperature value of each phase sub-terminal and the first temperature 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, the size relationship between the temperature value of the phase sub-terminal and the first temperature threshold is respectively judged, and optionally, when the target phase sub-terminal comprises an incoming line temperature value and an outgoing line temperature value, the size relationship between the incoming line temperature value and the first temperature threshold and the size relationship between the outgoing line temperature value and the first temperature threshold can be respectively judged.

Step 302, when the temperature value of the target phase sub-terminal exceeds a first temperature threshold and the duration time exceeds a first time threshold, it is determined that a temperature overrun abnormal event occurs in the target phase sub-terminal.

In an optional implementation process of this embodiment, when the temperature value of the target phase sub-terminal exceeds a first temperature threshold and the duration time exceeds a first time threshold, it is determined that a temperature overrun abnormal event occurs in the target phase sub-terminal; wherein the duration exceeding the 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 and the duration of the temperature overrun exceeds a first time threshold, it may be determined that a temperature overrun abnormal event occurs in the target phase sub-terminal; the incoming line temperature value and the outgoing line temperature value of the target phase sub-terminal may both exceed the first temperature threshold, and when the duration of the temperature overrun exceeds the first time threshold, it may be determined that the temperature overrun abnormal event occurs in the target phase sub-terminal. In addition, the first temperature threshold may be represented as a temperature overrun trigger lower limit of the terminal, that is, if a temperature value of a target phase terminal of the terminal exceeds the temperature overrun trigger lower limit, it represents that a temperature overrun abnormal event occurs in the target phase terminal; alternatively, different lower temperature overrun trigger limits 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 an over-temperature abnormal event by respectively determining the relationship between the temperature value of each phase sub-terminal and the first temperature threshold, and when the temperature value of the target phase sub-terminal exceeds the first temperature threshold and the duration time exceeds the first time threshold, that is, the management core in this embodiment can respectively determine whether the temperature over-limit abnormal event occurs in each phase sub-terminal according to the temperature value and the first temperature threshold in the temperature monitoring data of each phase sub-terminal, and can accurately position which phase sub-terminal of the connection terminal has the over-temperature abnormal event when the temperature over-limit abnormal event occurs in the connection terminal, thereby improving the accuracy and comprehensiveness of the temperature monitoring of the connection terminal; in addition, whether the temperature overrun abnormal event occurs or not is judged through the temperature value and the temperature overrun duration time of the target phase sub-terminal, the problem that due to the fact that the temperature is instantaneously subjected to abnormal overrun caused by other factors, monitoring is inaccurate can be avoided, and accuracy of temperature monitoring is improved.

Fig. 4 is a schematic flow chart of a temperature monitoring method in another embodiment. The embodiment relates to another optional implementation process for monitoring whether the temperature abnormal event occurs in each phase sub-terminal or not by the management core according to the temperature monitoring data of each phase sub-terminal. On the basis of the above embodiment, as shown in fig. 4, step 202 includes:

step 401, respectively determining the magnitude relation between the temperature value of each phase sub-terminal and the second temperature threshold, and respectively determining the magnitude relation between the current value of each phase sub-terminal and the preset current 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; 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 a preset current threshold value; optionally, the second temperature threshold may be the same as or different from the first temperature threshold; in addition, when the target phase terminal comprises an incoming line temperature value and an outgoing line temperature value, the size relationship between the incoming line temperature value and the second temperature threshold value and the size relationship between the outgoing line temperature value and the second temperature threshold value can also be respectively judged.

Step 402, determining that the temperature overrun trip abnormal event occurs in the target phase sub-terminal 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 time exceeds a 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, the current value of the target phase sub-terminal exceeds the preset current threshold, and the duration time exceeds the second time threshold, it may be determined that the temperature overrun trip abnormal event occurs at the target phase sub-terminal; 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 exceeds the preset current threshold; optionally, the second time threshold may be the same as or different from the first time threshold; optionally, when one of the incoming line temperature value or the outgoing line 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 time exceeds a second time threshold, it may be determined that a temperature overrun trip abnormal event occurs in the target phase sub-terminal; the incoming line temperature value and the outgoing line temperature value of the target phase sub-terminal both exceed the first temperature threshold, the current value of the target phase sub-terminal exceeds the preset current threshold, and when the duration time exceeds the second time threshold, it can be determined that the temperature overrun trip abnormal event occurs in the target phase sub-terminal.

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, and a magnitude relation between a current value of each phase sub-terminal and a preset current threshold, 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, the current value of the target phase sub-terminal exceeds the preset current threshold, and the duration time exceeds a second time threshold; that is, the management core in this embodiment can respectively determine whether the temperature over-limit trip abnormal event occurs in each phase sub-terminal according to the temperature value and the second temperature threshold value in the temperature monitoring data of each phase sub-terminal, and the current value and the preset current threshold value, and can accurately position which phase sub-terminal of the connection terminal has the temperature over-limit trip abnormal event when it is determined that the temperature over-limit trip abnormal event occurs in the connection terminal, thereby improving the accuracy and the comprehensiveness of the temperature monitoring of the connection terminal; in addition, whether the temperature overrun tripping abnormal event occurs when the temperature is abnormal due to the increase of the current is judged through the temperature value, the current value and the overrun tripping duration time of the target phase sub-terminal, the abnormal situation that the temperature is increased instantly due to the increase of the current caused by other factors can be avoided, the problem of inaccurate monitoring is further solved, and the accuracy of temperature monitoring is improved.

Fig. 5 is a schematic flow chart of a temperature monitoring method in another embodiment. The embodiment relates to one optional implementation process of monitoring whether the temperature abnormal event occurs in each phase sub-terminal or not by the management core according to the temperature monitoring data of each phase sub-terminal. On the basis of the above embodiment, as shown in fig. 5, step 202 includes:

in step 501, the temperature variation of each phase sub-terminal is calculated according to the temperature values of each phase sub-terminal at a plurality of different time points.

The temperature monitoring data comprises a plurality of temperature values at different moments, optionally, the metering core can acquire the temperature monitoring data of each phase sub-terminal of the wiring terminal according to different time units or different acquisition frequencies, and the management core can also set different interval times to acquire the metering data of the metering core, so that the temperature monitoring data of each phase sub-terminal acquired by the management core comprises a plurality of temperature values at different moments; for example: the management core can be provided with a second-level timer, the metering data of the metering core can be acquired once in one second or n seconds, and the metering core can acquire the metering data at the 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 respectively calculate a temperature variation of each phase sub-terminal according to the acquired temperature monitoring data of each phase sub-terminal; for example: the temperature change amount in 10 seconds may be calculated, the temperature change amount in 30 seconds may be calculated, the temperature change amount in 1 minute may be calculated, and the like, for example, an absolute value of a difference between the temperature average value in the current 10 seconds and the temperature average value in the previous 10 seconds may be used as the current temperature change amount, and a difference between the temperature average value in the current 10 seconds and the temperature average value in the previous 10 seconds may be used as the current temperature change amount. The present embodiment does not limit the calculation of the temperature variation.

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

And step 503, determining that a temperature sharp change abnormal event occurs in the target phase sub-terminal when the temperature variation of the target phase sub-terminal exceeds the preset variation threshold.

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 relationship between the temperature variation of each phase sub-terminal and a preset variation threshold value, and further determines that a temperature drastic abnormal event occurs in the target phase sub-terminal when the temperature variation of the target phase sub-terminal exceeds the preset variation threshold value; that is to say, in this embodiment, the management core can determine whether a temperature excursion abnormal event occurs in each phase sub-terminal according to the temperature variation of each phase sub-terminal, and not only can the temperature excursion abnormal of a specific sub-terminal be accurately achieved when the temperature excursion occurs in the connection terminal of the electricity meter, but also the accuracy and efficiency of determining the temperature excursion abnormal can be improved.

Fig. 6 is a schematic flow chart of a temperature monitoring method in another embodiment. The embodiment relates to one optional implementation process of monitoring whether the temperature abnormal event occurs in each phase sub-terminal or not by the management core according to the temperature monitoring data of each phase sub-terminal. On the basis of the above embodiment, as shown in fig. 6, step 202 includes:

step 601, 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.

In an optional implementation process of this embodiment, after the management core acquires the temperature monitoring data of each phase sub-terminal, a plurality of temperature variation amounts of each phase sub-terminal in 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 refer to the description of step 501, which is not described herein again. In addition, the number of the plurality of temperature change amounts is not limited in this embodiment.

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

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

Step 603, determining that a temperature imbalance abnormal event occurs at the target phase sub-terminal under the condition that the variation amplitude between every two of the plurality of temperature variation amounts corresponding to the target phase sub-terminal exceeds the preset amplitude threshold.

In this embodiment, the management core respectively 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 respectively judges whether a variation amplitude between two of the plurality of temperature variation amounts corresponding to each phase sub-terminal exceeds a preset amplitude threshold, and further determines that a temperature imbalance abnormal event occurs in a target phase sub-terminal under the condition that the variation amplitude between two of the plurality of temperature variation amounts corresponding to the target phase sub-terminal exceeds the preset amplitude threshold; that is to say, in this embodiment, the management core can determine whether an abnormal event of temperature imbalance occurs in each phase sub-terminal according to the temperature variation of each phase sub-terminal, and not only can the temperature imbalance abnormality of the specific sub-terminal be accurately determined when the temperature imbalance abnormality occurs in the connection terminal of the electricity meter, but also the accuracy of determining the abnormal temperature imbalance can be improved, and the comprehensiveness of monitoring the temperature of the connection terminal can be improved.

Fig. 7 is a schematic flow chart of a temperature monitoring method in another embodiment. The embodiment relates to one optional implementation process of the management core for carrying out protection response on the target electricity meter according to the type of the temperature abnormal event when the temperature abnormal event occurs at the target phase terminal. On the basis of the above embodiment, as shown in fig. 7, step 203 includes:

in step 701, when a temperature abnormal event occurs at a target phase terminal, the management core determines the type of the occurred temperature abnormal event.

Optionally, the types of temperature anomaly events may include an over-temperature anomaly type, an over-temperature trip anomaly type, a temperature excursion anomaly type, and a temperature imbalance anomaly type.

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

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

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

Fig. 8 is a schematic flow chart of a temperature monitoring method in another embodiment. The embodiment relates to one optional implementation process of the management core for carrying out protection response on the target electricity meter according to the type of the temperature abnormal event when the temperature abnormal event occurs at the target phase terminal. On the basis of the above embodiment, as shown in fig. 8, step 203 includes:

in step 801, in the case where the temperature abnormality occurs at the target phase terminal, the management core determines the type of the temperature abnormality that has occurred.

And step 802, under the condition that 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 switched off.

In an optional implementation process of this embodiment, the management core may control the switch of the target electricity meter to be turned off when it is determined that the type of the occurred temperature abnormal event is the temperature overrun trip abnormal event; optionally, the load switch of the electric meter may be controlled to be turned off when the switch of the target electric meter is a built-in switch, and the circuit breaker of the electric meter may be controlled to be turned off when the switch of the target electric meter is an external switch, that is, the switching-off operation of the electric meter may be realized to disconnect the power supply connection of the electric meter.

In this embodiment, the management core determines the type of the temperature abnormal event when the temperature abnormal event occurs at the target phase terminal, and controls the switch of the target electricity meter to be turned off when the type of the temperature abnormal event is the temperature overrun trip abnormal event; the condition that the ammeter is damaged due to the fact that the temperature of the ammeter wiring terminal is ultrahigh due to overlarge current can be avoided, and the protection degree of the ammeter is improved.

In an optional embodiment of the present application, after the switch of the control electric meter is turned off, that is, after the switching-off is performed, the management core may correspondingly modify the switching-off and switching-on states of the target electric meter, that is, after the switching-off is performed, the states may be modified into the switching-on allowing states; under the condition that the state is a closing permission state, a worker can manually close the target electric meter, and can manually close the target electric meter in a key pressing mode; 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 to realize switching on, and then the power supply supplies power to the target ammeter again.

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

Fig. 9 is a schematic flow chart of a temperature monitoring method in another embodiment. The embodiment relates to one optional implementation process of judging whether the temperature of a wiring terminal is normal or not after the management core monitors the occurrence of the temperature abnormal event and finishing recording the temperature abnormal event after the temperature is normal. On the basis of the above embodiment, as shown in fig. 9, the method further includes:

step 901, after any type of temperature abnormal event occurs at the target phase sub-terminal, the management core monitors whether the temperature of each phase sub-terminal is recovered to normal or not according to the temperature monitoring data of each phase sub-terminal.

In an optional implementation process of this embodiment, after determining that any type of temperature abnormal 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 abnormal event, and then, the management core may determine whether the temperature of each phase sub-terminal is normal or not according to the temperature monitoring data of each phase sub-terminal; optionally, it may be respectively determined whether the temperature value of each phase sub-terminal is less than a first temperature threshold, or less than a second temperature threshold, or less than a third temperature threshold, where the third temperature threshold may be an upper recovery limit of the temperature, and the third temperature threshold may be greater than or equal to the first temperature threshold; whether the current value of each phase sub-terminal is smaller than a preset current threshold value can be judged; whether the temperature variation of each phase sub-terminal is smaller than a preset variation threshold value can be judged; whether the variation amplitude between every two of the plurality of temperature variation quantities of each phase sub-terminal is smaller than a preset amplitude threshold value or not can be respectively judged, and whether the duration time for recovering the temperature to be normal and the duration time for recovering the current to be normal exceed a preset time threshold value or not can be judged.

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

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

In this embodiment, after determining that any type of temperature abnormal event occurs at the target phase sub-terminal, the management core monitors whether the temperature of each phase sub-terminal is normal or not according to the temperature monitoring data of each phase sub-terminal, and ends recording of the temperature abnormal event when the temperature of each phase sub-terminal is normal; in this embodiment, the management core can judge the abnormal temperature moment and the normal temperature moment in real time according to the temperature monitoring data of each phase sub-terminal, record the abnormal event when the temperature is abnormal, and end the record of the abnormal event when the temperature is normal, so that the abnormal temperature event recorded by the management core is more complete, and further, a worker can clearly know the running state of the electric meter at each moment according to the record of the abnormal temperature event sent to the service by the management core.

In an alternative embodiment of the present application, the management core may adopt a data processing mechanism with different threads when performing temperature monitoring of the connection terminal, 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 sub-terminal, monitor whether each phase sub-terminal generates a temperature abnormal event or not according to the temperature monitoring data of each phase sub-terminal, and perform protection response on the target ammeter according to the type of the generated temperature abnormal event under the condition of the temperature abnormal event; the event recording thread can record any type of temperature abnormal event which occurs at each phase sub-terminal. Through the data processing mechanism of the sub-thread, the thread resource can be saved, and the use efficiency and the data processing speed of the thread can be improved.

It should be understood that although the various steps in the flow charts of fig. 2-9 are shown in order as indicated by the arrows, the steps are not necessarily performed in order as indicated by the arrows. The steps are not performed in the exact order shown and described, and may be performed in other orders, unless explicitly stated otherwise. Moreover, at least some of the steps in fig. 2-9 may include multiple steps or multiple stages, which are not necessarily performed at the same time, but may be performed at different times, which are not necessarily performed in sequence, but may be performed in turn or alternately with other steps or at least some of the other steps.

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

an obtaining module 1001, 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 whether a temperature abnormal event occurs in each phase sub-terminal according to temperature monitoring data of each phase sub-terminal, where the temperature abnormal event includes a temperature overrun abnormal event, a temperature overrun trip abnormal event caused by current overrun, a temperature drastic abnormal event caused by temperature variation overrun, and a temperature imbalance abnormal event caused by temperature fluctuation.

A response module 1003, configured to, if the temperature abnormal event occurs at the target phase terminal, perform a protection response on the target electric meter according to a type of the temperature abnormal event, where the protection response includes controlling a 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 determining unit and a first determining unit; the first judging unit is used for respectively judging the magnitude relation between the temperature value of each phase sub-terminal and the first temperature threshold value; and the first determination unit is used for determining that the temperature overrun abnormal event occurs in the target phase sub-terminal under the condition that the temperature value of the target phase sub-terminal exceeds a first temperature threshold value and the duration time exceeds a first time threshold value.

In one embodiment, the monitoring module 1002 may include a second determining 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 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 temperature overrun tripping abnormal event occurs in the target phase sub-terminal under the conditions 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 time exceeds a second time threshold value.

In one embodiment, the temperature monitoring data includes a plurality of temperature values at different times, and the monitoring module 1002 may include a calculating unit, a third determining unit, and a third determining unit; the calculating unit is used for respectively calculating 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 respectively judging the magnitude relation between the temperature variation of each phase of the sub-terminals and a preset variation threshold; and the third determining unit is used for determining that the temperature sharp change abnormal event occurs in the target phase sub-terminal under the condition that the temperature change amount of the target phase sub-terminal exceeds the preset change amount threshold.

In one embodiment, the monitoring module 1002 may include a fourth determining unit and a fourth determining unit; the calculating unit is further configured to calculate a plurality of temperature variations of each phase sub-terminal in a continuous time according to the temperature values of each phase sub-terminal at a plurality of different times; the fourth judging unit is used for respectively judging whether the change amplitude between every two of the temperature change quantities corresponding to the sub terminals of each phase exceeds a preset amplitude threshold value; 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 variation amplitude between every two of the temperature variation 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; 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 terminal; the recording unit is used for recording the temperature abnormal event of any type under the condition that the type of the temperature abnormal event is any type; and the sending unit is used for sending alarm information to the server, and the alarm information comprises the temperature abnormal event of the type.

In one embodiment, the response module 1003 includes a control unit; the fifth determining unit is configured to determine a type of the occurred temperature abnormal event when the temperature abnormal event occurs at the target phase terminal; and the control unit is used for controlling the switch of the target electric meter to be switched off 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 normal or not according to the temperature monitoring data of each phase sub-terminal after any type of temperature abnormal event occurs at the target phase sub-terminal; when the temperature of each phase sub-terminal returns to normal, the recording of the temperature abnormal event is finished.

For the specific definition of the temperature monitoring device, reference may be made to the above definition of the temperature monitoring method, which is not described herein again. The modules in the temperature monitoring device can be wholly or partially realized by software, hardware and a combination thereof. The modules can be embedded in a hardware form or independent from a processor in the computer device, and can also be stored in a memory in the computer device in a software form, so that the processor can call and execute operations corresponding to the modules.

In one embodiment, a two-core smart meter is provided, the internal structure of which may be as shown in fig. 11. The double-core intelligent electric meter comprises a processor, a memory and a network interface which are connected through a system bus. Wherein, the processor of the double-core intelligent electric meter is used for providing calculation and control capability. The memory of the double-core intelligent electric meter comprises a nonvolatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, a computer program, and a database. The internal memory provides an environment for the operation of an operating system and computer programs in the non-volatile storage medium. The database of the dual-core smart meter 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 in the application. The network interface of the computer device is used for communicating with an external terminal or server or a master station through network connection. The computer program is executed by a processor to implement a temperature monitoring method.

Those skilled in the art will appreciate that the architecture shown in fig. 11 is merely a block diagram of some of the structures associated with the disclosed aspects and is not intended to limit the computing devices to which the disclosed aspects apply, as particular computing devices may include more or less components than those shown, or may combine certain components, or have a different arrangement of components.

In one embodiment, a two-core smart meter is provided, comprising a memory and a processor, wherein the memory stores a computer program, and the processor implements 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 time exceeds a first time threshold value, determining that the temperature overrun abnormal event occurs in the target phase sub-terminal.

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 a preset current threshold value; and under the conditions 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 time exceeds a second time threshold value, determining that the temperature overrun tripping abnormal event occurs in the target phase sub-terminal.

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

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

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

In one embodiment, the processor, when executing the computer program, further performs the steps of: determining the type of the temperature abnormal event when the temperature abnormal event occurs at the target phase terminal; and if the type of the temperature abnormal event is the temperature overrun trip abnormal event, the switch of the control target electricity meter is turned off.

In one embodiment, the processor, when executing the computer program, further performs the steps of: after any type of temperature abnormal event occurs at 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 abnormal event is finished.

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 time exceeds a first time threshold value, determining that the temperature overrun 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: 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 a preset current threshold value; and under the conditions 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 time exceeds a second time threshold value, determining that the temperature overrun tripping 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: the temperature monitoring data comprises a plurality of temperature values at different moments, and the temperature variation of each phase sub-terminal is respectively 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 of sub-terminal and a preset variation threshold; and determining that the temperature sharp change abnormal event occurs in the target phase sub-terminal under the condition that the temperature variation of the target phase sub-terminal exceeds the preset variation threshold.

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

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

In one embodiment, the computer program when executed by the processor further performs the steps of: determining the type of the temperature abnormal event when the temperature abnormal event occurs at the target phase terminal; and if the type of the temperature abnormal event is the temperature overrun trip abnormal event, the switch of the control target electricity meter is turned off.

In one embodiment, the computer program when executed by the processor further performs the steps of: after any type of temperature abnormal event occurs at 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 abnormal event is finished.

It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by hardware instructions of a computer program, which can be stored in a non-volatile computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. Any reference to memory, storage, database or other medium used in the embodiments provided herein can include at least one of non-volatile and volatile memory. Non-volatile Memory may include Read-Only Memory (ROM), magnetic tape, floppy disk, flash Memory, optical storage, or the like. Volatile Memory can include Random Access Memory (RAM) or external cache Memory. By way of illustration and not limitation, RAM can take many forms, such as Static Random Access Memory (SRAM) or Dynamic Random Access Memory (DRAM), among others.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A method of monitoring temperature for use in a target electric meter, the target electric meter including a connection terminal including a plurality of sub-terminals, the target electric meter including a measurement core and a management core communicatively coupled thereto, the method comprising:

the management core monitors whether temperature abnormal events occur to each phase sub-terminal according to temperature monitoring data of each phase sub-terminal, wherein the temperature abnormal events comprise temperature out-of-limit abnormal events, temperature out-of-limit tripping abnormal events caused by current out-of-limit, temperature sharp change abnormal events caused by temperature variation out-of-limit and temperature unbalance abnormal events caused by temperature up-down fluctuation;

and if the temperature abnormal event occurs at the target phase terminal, the management core carries out protection response on the target electric meter according to the type of the temperature abnormal event, wherein the protection response comprises the steps of controlling the switch of the target electric meter to be switched off and sending alarm information to a server.

2. The method of claim 1, wherein the monitoring of the temperature anomaly events at each phase sub-terminal by the management core based on the temperature monitoring data at each phase sub-terminal comprises:

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

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

3. The method of claim 1, wherein the monitoring of the temperature anomaly events at each phase sub-terminal by the management core based on the temperature monitoring data at each phase sub-terminal comprises:

respectively judging the magnitude relation between the temperature value of each phase sub-terminal and a second temperature threshold value, and respectively judging the magnitude relation between the current value of each phase sub-terminal and a 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 time exceeds a second time threshold, determining that the temperature overrun tripping abnormal event occurs in the target phase sub-terminal.

4. The method of claim 1, wherein the temperature monitoring data comprises a plurality of temperature values at different times, and the monitoring of the abnormal temperature event of each phase sub-terminal by the management core according to the temperature monitoring data of each phase sub-terminal comprises:

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

respectively judging the magnitude relation between the temperature variation of each phase 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 drastic abnormal event occurs in the target phase sub-terminal.

5. The method of claim 4, wherein the monitoring of the temperature anomaly events of the phase sub-terminals by the management core based on the temperature monitoring data of the phase sub-terminals comprises:

respectively 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;

respectively judging whether the variation amplitude between every two of the temperature variation quantities corresponding to the sub terminals of each phase exceeds a preset amplitude threshold value;

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

6. The method of claim 1, wherein if the temperature anomaly event occurs at the target phase terminal, the management core performs a protection response on the target electricity meter according to the type of the temperature anomaly event, and the method comprises the following steps:

if the temperature abnormal event occurs at the target phase terminal, the management core determines the type of the occurred 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 at the target phase terminal, the management core performs a protection response on the target electricity meter according to the type of the temperature anomaly event, and the method comprises the following steps:

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 switched off.

8. The method of claim 7, further comprising:

after the target phase sub-terminal has any type of temperature abnormal event, 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;

and if the temperature of each phase sub-terminal returns to normal, ending the recording of the temperature abnormal event.

9. A temperature monitoring device, the device comprising:

10. A two-core smart meter comprising a memory and a processor, the memory storing a computer program, wherein the processor when executing the computer program implements the steps of the method of any one of claims 1 to 8.

11. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the method of any one of claims 1 to 8.