CN114518480A - Portable intelligent electric meter data recovery device and method - Google Patents

Abstract

The invention provides a portable intelligent electric meter data recovery device and a method, wherein the device comprises: the system comprises a baud rate generating module used for generating baud rate signals according to a first preset mode, and a first sending module electrically connected with the baud rate generating module and used for sending the baud rate signals to a tested electric meter on a fire scene, a first receiving module for receiving the feedback signal, and a judging module respectively electrically connected with the first receiving module and the baud rate generating module for generating a first instruction signal or a second instruction signal, a second receiving module for receiving the primary data signal sent by the tested ammeter, and a historical time generating module for generating a historical time signal according to a second preset mode, and the data processing module is respectively and electrically connected with the second receiving module and the historical time generating module and is used for generating target data, so that the data recovery of the intelligent electric energy meter facing to a fire scene is realized, and the device and the method for recovering the data of the electric energy meter are more accurate and efficient.

Description

Portable intelligent electric meter data recovery device and method

Technical Field

The invention relates to the technical field of fire accident investigation and ammeter data acquisition, in particular to a portable intelligent ammeter data recovery device and method.

Background

At present, fire accidents caused by circuit faults frequently occur, but it is very difficult to investigate the causes of the circuit faults, wherein the data of the smart meters at a fire scene is investigated and analyzed as the content with the most reference value. However, the fire scene environment is severe, the centralized arrangement of the multi-user electric meters leads to complex scene conditions, meanwhile, the types of the intelligent electric meters are various, and the measuring instruments and the electric meters cannot be successfully connected due to different communication rates, namely baud rates, of the serial ports connected with the measuring instruments and the electric meters. In addition, the case of damage and unidentifiable of the shell caused by the influence of dense smoke, high temperature and the like appears in a large part of the electric energy meters on the fire scene. Therefore, how to quickly, accurately and effectively collect data stored by the intelligent electric meter in a fire scene is an important test for fire investigators, and no equipment specially used for efficiently and accurately reading data of the electric energy meter in the fire scene exists at present.

Therefore, based on the reasons, the invention provides a portable intelligent electric meter data recovery device, which can be used for efficiently and accurately reading the electric meter data in a fire scene and performing auxiliary judgment on the fire accident reason.

Disclosure of Invention

In view of the above shortcomings of the prior art, the present invention provides a portable intelligent electric meter data recovery device and method.

In a first aspect of the present invention, a portable intelligent electric meter data recovery device is provided, including:

the system comprises a baud rate generating module, a first sending module, a first receiving module, a judging module, a second receiving module, a historical time generating module and a data processing module;

the system comprises a baud rate generation module, a baud rate generation module and a baud rate generation module, wherein the baud rate generation module is used for generating a baud rate signal according to a first preset mode;

the first sending module is electrically connected with the baud rate generating module and used for receiving the baud rate signal and sending the baud rate signal to a tested meter;

the first receiving module is used for receiving a feedback signal sent by the tested ammeter;

the judging module is respectively electrically connected with the first receiving module and the baud rate generating module and is used for judging whether the parameter of the feedback signal is in a preset threshold range, if not, a first instruction signal is generated, and if so, a second instruction signal is generated;

the second receiving module is used for receiving the second instruction signal and receiving a primary data signal sent by the electric meter to be tested according to the second instruction signal;

The historical time generating module is used for generating a historical time signal according to a second preset mode;

and the data processing module is respectively electrically connected with the second receiving module and the historical time generating module and is used for generating target data according to the received historical time signal and the primary data signal.

Furthermore, the object of the electric meter to be tested is an intelligent electric meter facing to a fire scene.

Further, the apparatus further comprises: and the error prompt module is electrically connected with the judgment module and is used for sending an error prompt signal when the Nth judgment that the threshold value of the feedback signal is not in the preset range is made.

Further, the baud rate generating module includes: and the gear setting unit is used for setting baud rate signal gears of a plurality of levels according to the first preset mode.

Further, the gear setting unit sets 12 fixed gears according to the baud rate as follows: 50. 75, 100, 150, 300, 600, 1200, 4800, 9600, 19200, 38400, and 115200.

Further, the data processing module comprises: and the table number identification unit is used for identifying the table number of the tested electric meter according to the primary data signal.

Further, the apparatus further comprises:

the display module is electrically connected with the data processing module and is used for displaying the received data and the data processed by the data processing module;

and the data processing module is electrically connected and used for storing the received data and the data processed by the data processing module.

Further, the data processing module comprises a chart generating unit, and the chart generating unit is used for generating a visual statistical analysis chart according to the data processed by the data processing module.

Furthermore, the device also comprises a second sending module which is electrically connected with the data processing module and used for sending the data to the data processing terminal.

In a second aspect of the present invention, a method for recovering data of a portable smart meter is provided, which includes the following steps:

generating a first baud rate signal according to a first preset mode, and sending the first baud rate signal to a tested ammeter;

step two, receiving a feedback signal of the tested ammeter;

step three, judging whether the parameter of the feedback signal is in a preset threshold range; if not, generating a first instruction signal, generating a second baud rate signal according to the first instruction signal and the first preset mode, sending the second baud rate signal to the tested ammeter, and returning to execute the second step; if yes, generating a second instruction signal, and receiving a primary data signal sent by the tested ammeter according to the second instruction signal;

Step four, generating a historical time signal according to a second preset mode;

and fifthly, generating target data according to the historical time signal and the primary data signal.

The technical scheme provided by the embodiment of the invention at least brings the following beneficial technical effects:

compared with the related technology, the portable intelligent electric meter data recovery device and method provided by the invention have the advantages that when facing fire scenes with complex environment and intelligent electric meters of different types, the quick automatic connection between the measuring device and the electric meter to be measured is realized, the time-sharing collection and data analysis of the electric meter data are realized, the collected data are more accurate, efficient and intelligent, and the user experience is improved.

Drawings

Fig. 1 is a schematic structural diagram of a data recovery device for a portable intelligent electric meter according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of another portable intelligent electric meter data recovery device according to an embodiment of the invention;

FIG. 3 is a schematic structural diagram of an input module provided in accordance with an embodiment of the present invention;

fig. 4 is a flowchart of a method for recovering data of a portable intelligent electric meter according to an embodiment of the present invention;

reference numerals:

the device comprises a baud rate generating module-1, a first sending module-2, a first receiving module-3, a judging module-4, a second receiving module-5, a historical time generating module-6, a data processing module-7, an error prompting module-8, a display module-9, a storage module-10, a second sending module-11, a positioning module-12, an input module-13, a connecting key-14, a reset key-15, a first knob-16, a second knob-17, a third knob-18, a fourth knob-19, a start time confirming key-20, an end time confirming key-21 and a 485 interface-22.

Detailed Description

It should be noted that, in the present application, the embodiments and features of the embodiments may be combined with each other without conflict. The terms first, second and the like in the description and in the claims and the drawings of the present invention are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged as appropriate in order to facilitate the embodiments of the invention described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps S or elements is not necessarily limited to those steps S or elements expressly listed, but may include other steps S and elements not expressly listed or inherent to such process, method, article, or apparatus.

For better understanding of the solution of the present invention, the solution in the embodiment of the present invention is clearly and completely described below with reference to the drawings in the embodiment of the present invention, and it is obvious that the described embodiment is only a part of the embodiment of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example one

An embodiment of the present invention provides a portable intelligent electric meter data recovery device, and fig. 1 is a schematic structural diagram of a portable intelligent electric meter data recovery device provided in an embodiment of the present invention, as shown in fig. 1, including:

the system comprises a baud rate generation module 1, a baud rate generation module and a baud rate generation module, wherein the baud rate generation module 1 is used for generating a baud rate signal according to a first preset mode;

the first sending module 2 is electrically connected with the baud rate generating module 1 and is used for receiving the baud rate signal and sending the baud rate signal to a tested ammeter;

the first receiving module 3 is used for receiving a feedback signal sent by the tested ammeter;

the judging module 4 is electrically connected with the first receiving module 3 and the baud rate generating module 1 respectively and is used for judging whether the parameter of the feedback signal is in a preset threshold range, if not, a first instruction signal is generated, and if so, a second instruction signal is generated;

the second receiving module 5 is configured to receive the second instruction signal and receive a primary data signal sent by the electrical meter to be tested according to the second instruction signal;

the historical time generating module 6 is used for generating a historical time signal according to a second preset mode;

And the data processing module 7 is electrically connected with the second receiving module 5 and the historical time generating module 6 respectively and is used for generating target data according to the received historical time signal and the primary data signal.

Specifically, the baud rate generating module 1 is configured to generate a baud rate signal according to a first preset manner, where it is to be noted that, according to the first preset manner, a user may perform the preset baud rate value and the size and manner of the baud rate change according to actual needs, for example, the baud rate is set in a manner that the baud rate is increased by 100 each time from 100, until the baud rate reaches 100000, or the baud rate is decreased by a high number, or another change manner is adopted, which is not limited here, where an operation of generating the baud rate for the first time is in response to a start switch of the data recovery device.

Preferably, the tested electric meter object is an intelligent electric meter facing to a fire scene.

The electric meter to be tested is an intelligent electric meter comprising a storage device, and the storage device is a memory card or a memory chip for example; the feedback signal is that after the tested electric meter receives the baud rate signal sent by the first sending module 2, the tested electric meter identifies according to the baud rate signal and matches with the bandwidth index of the built-in transmission channel of the intelligent electric meter, if the matching is successful, the feedback signal of successful matching is sent to the data recovery device, and if not, the feedback signal of failed matching is sent.

It should be noted that the determining module 4 is configured to determine whether a parameter of the feedback signal is within a preset threshold range, generate a first instruction signal when the data recovery apparatus receives a feedback signal with a failed baud rate matching, and generate a second instruction signal when the data recovery apparatus receives a feedback signal with a successful baud rate matching.

The primary data signal is original storage data sent by the tested electric meter to the data recovery device according to the received second instruction signal, and the original storage data comprises all data in the storage device of the intelligent electric meter.

The historical time generating module 6 is configured to generate a historical time signal according to a second preset mode, where the second preset mode is a mode preset according to a specified time element, and includes six time elements of year, month, day, hour, minute, and second.

It should be noted that the target data is a voltage value or a current value or an electricity consumption power value in the specified time period, which is not limited herein.

In the specific implementation process, the portable intelligent electric meter data recovery device is started, the baud rate generation module 1 responds to the starting of a starting switch and generates a first-time baud rate signal, the first-time baud rate signal is sent to a tested electric meter through the first sending module 2, the tested electric meter matches with a built-in transmission channel bandwidth index of the intelligent electric meter according to the received first-time baud rate signal, if the matching is successful, a feedback signal of successful matching is sent to the data recovery device, otherwise, a feedback signal of failed matching is sent, the first receiving module 3 of the data recovery device receives the feedback signal and sends the feedback signal to the judgment module 4, the judgment module 4 identifies whether the parameter of the feedback signal is in a preset threshold range, for example, the parameter of the feedback signal of successful matching and the parameter of the feedback signal of failed matching are respectively in different value intervals, if the matching fails, a first instruction signal is generated and sent to the baud rate generation module 1, the baud rate generation module 1 generates and sends the next preset baud rate according to the first instruction signal, if the matching succeeds, a second instruction signal is generated and sent to the second receiving module 5, the second receiving module 5 starts to receive a primary data signal sent by the electricity meter to be tested and sends the primary data signal to the data processing module 7, meanwhile, the processing module generates target data according to the primary data signal and a historical time signal generated by the historical time generation module 6 in a second preset mode, and a user analyzes a specified time period, such as a time period in which the fire is probably caused, and judges the cause of the fire according to the target data.

Therefore, in the embodiment of the invention, compared with the prior art, the portable intelligent electric meter data recovery device at least has the following technical effects: when the scene of a fire and different kinds of smart electric meters that face the environment complicacy, realize measuring device and be surveyed quick automatic connection of ammeter to the realization is to the timesharing collection and the data analysis of ammeter data, and data acquisition is more accurate, high-efficient and intelligent, has promoted user experience.

In a preferred embodiment, the apparatus further comprises: and the error prompt module 8 is electrically connected with the judgment module 4, and is used for sending an error prompt signal when the Nth judgment is made that the threshold value of the feedback signal is not in the preset range.

Specifically, the error prompt module 8 receives the first instruction signal sent by the judgment module 4 and records the number of times of generation of the first instruction signal in the data recovery. In the embodiment of the invention, the number of preset baud rate gears is N, so that when the judgment module 4 generates the first instruction signal for the nth time, that is, the nth transmission channel bandwidth index matching failure occurs inside the tested electric meter, the error prompt module 8 prompts a user that the data recovery is not successfully connected, which may be caused by factors such as damage of the intelligent electric meter, and the operation convenience and the user experience are improved.

In a preferred embodiment, the baud rate generating module 1 includes: and the gear setting unit is used for setting baud rate signal gears of a plurality of levels according to the first preset mode.

Wherein the first preset mode is

Specifically, the gear setting unit includes an input device, such as a key, which is connectable to a user for operation, and the user sets the number of gears that can be generated by the baud rate, the baud rate value of each gear, and the gear shifting manner through the input device. The gear shifting mode is, for example, the baud rate generation module 1 sequentially performs incremental gear shifting from a gear with a low baud rate in the process from starting to receiving the first instruction signal for the nth time, or sequentially performs decremental gear shifting, and can be freely set according to the requirements of a user. In the embodiment of the invention, the gear setting unit enables the application range of the portable intelligent electric meter data recovery device to be wider, and improves the use convenience and the user experience.

Preferably, the gear setting unit sets 12 fixed gears with the following baud rates: 50. 75, 100, 150, 300, 600, 1200, 4800, 9600, 19200, 38400, and 115200. The 12 fixed gears almost cover the bandwidth index of the common transmission channel of the current intelligent electric meter, the connection efficiency is improved as much as possible, the application range is expanded, and the comprehensive efficiency of the data recovery system is enhanced.

In a preferred embodiment, the data processing module 7 comprises: and the table number identification unit is used for identifying the table number of the electric meter to be tested according to the primary data signal.

Specifically, because the fire scene has a severe environment, the multi-user electric meters are generally arranged in a centralized manner, and therefore the intelligent electric meters of the users causing the fire accidents need to be detected from a plurality of intelligent electric meters. The table number identification unit in the data processing module 7 can identify the user number of the detected electric meter according to the primary data signal, so that the accuracy and the efficiency of identifying the fire accident cause are improved.

In a preferred embodiment, the apparatus further comprises:

the display module 9 is electrically connected with the data processing module 7 and is used for displaying the received data and the data processed by the data processing module 7;

and the data processing module 7 is electrically connected with the storage module 10 and is used for storing the received data and the data processed by the data processing module 7.

Specifically, data received by the display module 9 and data processed by the data processing module 7 are stored by the storage module 10, so that the data can be conveniently stored and analyzed and judged in a later period, convenience in use and data recovery efficiency are improved, and user experience is improved.

In a preferred embodiment, the data processing module 7 includes a chart generating unit, and the chart generating unit is configured to generate a visual statistical analysis chart according to the data processed by the data processing module 7.

Specifically, the chart generation unit generates the data processed by the data processing module 7 into charts such as a broken line statistical chart, a sector statistical chart, a bar statistical chart and the like, and the charts can be specifically set according to the actual needs of users, so that data analysis can be visualized conveniently, the data analysis capability can be improved, and the accuracy and the efficiency of identifying the fire accident cause can be improved.

In a preferred embodiment, the apparatus further includes a second sending module 11, and the second sending module 11 is electrically connected to the data processing module 7, and is configured to send data to a data processing terminal.

Specifically, the second sending module 11 sends data to other data processing terminals or cloud storage or processes the data, so that data analysis personnel in other places can obtain analysis data of the cause of the fire accident, and the use convenience and the user experience are improved.

In a preferred embodiment, the apparatus further includes a positioning module 12, the positioning module 12 is electrically connected to the data processing module 7, and is configured to receive a satellite positioning signal and generate a current position signal, and fig. 2 is a schematic structural diagram of another portable smart meter data recovery apparatus provided according to an embodiment of the present invention, as shown in fig. 2.

Preferably, the positioning signal generates a current position signal and transmits the position signal to other data processing terminals or a cloud terminal through the second transmitting module 11 in the embodiment of the present invention, so that data analysts in other places can obtain the position information of the electric meter to be tested.

Preferably, the positioning module 12 includes an address analyzing device for the monitoring camera, video designated coordinate covering software, picture transparency modifying software and a video playing device, and can mark local coordinate points in the video being sampled by the monitoring camera, so as to ensure that a user sees a designated coordinate position on a display screen in the video recording process.

In the embodiment of the invention, the positioning module 12 adopts a Beidou positioning system to perform real-time positioning and sends the position information to other data processing terminals or cloud terminals, so that the use convenience and the user experience are improved, and the accuracy and the efficiency of identifying the causes of the fire accidents are improved.

Preferably, the portable data recovery device for the smart electric meter further comprises a power supply module, wherein the power supply module is electrically connected with the baud rate generation module 1, the first sending module 2, the first receiving module 3, the judgment module 4, the second receiving module 5, the historical time generation module 6 and the data processing module 7 respectively, and is used for supplying power to each functional module of the recovery device.

Preferably, the power supply module comprises a battery and a voltage reduction chip.

In addition, a unit included in a certain module according to an embodiment of the present invention may be understood as being disposed in the certain module and electrically connected to other portions of the certain module.

Example two

On the basis of the first embodiment, another portable intelligent electric meter data recovery device is further provided in the embodiments of the present invention, and includes:

the baud rate generating module 1 is used for generating a baud rate signal according to a first preset mode;

the first sending module 2 is electrically connected with the baud rate generating module 1 and used for receiving the baud rate signal and sending the baud rate signal to a tested meter;

the first receiving module 3 is used for receiving a feedback signal sent by the measured ammeter;

the judging module 4 is electrically connected with the first receiving module 3 and the baud rate generating module 1 respectively and is used for judging whether the parameter of the feedback signal is in a preset threshold range, if not, a first instruction signal is generated, and if so, a second instruction signal is generated;

the second receiving module 5 is configured to receive the second instruction signal and receive a primary data signal sent by the electrical meter to be tested according to the second instruction signal;

A historical time generating module 6, configured to generate a historical time signal according to a second preset manner;

the data processing module 7 is electrically connected with the second receiving module 5 and the historical time generating module 6 respectively and is used for generating target data according to the received historical time signal and the primary data signal;

an input module 13, electrically connected to the baud rate generating module 1 and the historical time generating module 6, respectively, and configured to start the data recovery device and set a first preset mode for baud rate generation and a second preset mode for historical time signal generation, where fig. 3 is a schematic structural diagram of the input module according to an embodiment of the present invention, as shown in fig. 3.

Preferably, the input module 13 includes:

the connection key 14 is electrically connected with the baud rate generation module 1 and is used for starting the data recovery device and enabling the baud rate generation module 1 to generate a first-time baud rate signal;

the reset key 15 is electrically connected with the baud rate generation module 1 and is used for restarting the data recovery device and enabling the baud rate generation module 1 to generate a first-time baud rate signal again;

a first knob 16 electrically connected to the historical time generation module 6 for inputting a start time signal including the year, month and day to the historical time generation module 6;

A second knob 17 electrically connected to the historical time generation module 6, for inputting a start time signal including hour, minute and second to the historical time generation module 6;

a third knob 18 electrically connected to the historical time generation module 6 for inputting an end time signal including the year, month and day to the historical time generation module 6;

a fourth knob 19 electrically connected to the historical time generation module 6, for inputting an end time signal including hour, minute and second to the historical time generation module 6;

a start time confirmation key 20 electrically connected to the historical time generation module 6, for inputting confirmation signals indicating time to the historical time generation module 6;

an end time confirmation key 21 electrically connected to the historical time generation module 6 for inputting confirmation signals indicating time to the historical time generation module 6 by the third knob 18 and the fourth knob 19.

In a preferred embodiment, the data recovery device further includes a 485 interface 22, one end of the 485 interface 22 is electrically connected to the first sending module 2, the first receiving module 3, and the second receiving module 5, respectively, and the other end is used for being connected to the interface of the electrical meter to be tested, as shown in fig. 3.

Preferably, the baud rate generating module 1 includes: the gear setting unit is used for setting baud rate signal gears of a plurality of levels according to the first preset mode, and the gear setting unit is used for setting 12 fixed gears as follows according to the baud rate: 50. 75, 100, 150, 300, 600, 1200, 4800, 9600, 19200, 38400, and 115200.

In a specific implementation process, the use method of the device provided by the embodiment of the invention comprises the following steps:

firstly, connecting an equipment 485 interface 22A/B with a 485 interface 22B/A of an electric meter, and connecting any phase line and neutral line of the electric meter to a 220V power supply system;

secondly, inputting a baud rate on the electric energy meter reading device, starting from 2400, automatically increasing the system background by gears and trying to read the electric energy meter number, wherein the gears comprise 4800, 9600, 19200, 38400 and 115200; if the above is unsuccessful, the reduction is performed again, including 50, 75, 100, 150, 300, 600, 1200. If none are successful, an error is reported, a fault signal is generated, and if a correct signal is successfully generated. The actual equipment is only connected with 1 button, if a correct signal is generated after clicking, the operation is successful, otherwise, the operation is reconnected in a background after self-adding, and if the operation is not successful after all baud rate tests are completed, an error is reported;

Then, two BCD codes are respectively input by utilizing a key according to year, month, day, hour, minute and second, then confirmation is performed by clicking, and equipment can generate correct signals after the input is completed, wherein the 10 BCD codes are used as electric energy data reading starting time;

then, two BCD codes are respectively input by utilizing a key according to year, month, day, hour, minute and second, then confirmation is performed by clicking, and equipment can generate correct signals after the input is finished, wherein the 10 BCD codes are used as electric energy data reading ending time;

then, the equipment automatically searches the electric energy value one by one in the time period, screens out other data irrelevant to fire investigation, and stores the data and time into a storage device in a two-dimensional array manner;

and finally, accessing the storage equipment into the PC by using a card reader, reading the file by using PC end software, and automatically generating a one-dimensional curve graph and an electric energy image.

And in any step, the reset button can be clicked to reset the equipment.

In the specific implementation process, for example, the year, month, day, hour and minute are input once at the positions of the first knob and the second knob, are recorded as T1 and are 2-bit BCD codes, and then a confirmation button is clicked, for example, the input is 2110281300 in 2021, 10, 28, 13: 00; inputting year, month, day, hour, minute and second at the positions of the third knob 18 and the fourth knob 19 once, recording as T2, and clicking a confirmation button after the codes are both 2-bit BCD codes in the same process c; the device outputs all the electric energy values and time between T1-T2 one by one according to the time interval stored by the electric energy meter, stores the electric energy values and time in a table file, records the time and the electric energy value 2 in a column, and stores the file in a storage device, wherein the embodiment of the invention is in a TF card; in any step, if the operation is wrong, the device can be restarted by clicking a reset button on the electric energy meter reading device; loading the TF card on a PC, reading files by using software, and respectively reading time and electric energy values by using the software to form a curve chart; when the number of the time periods is larger than 96, the electric energy value is completely converted into a numerical value between 0 and 256, and the numerical value is made into a plurality of 4-24 pixel pictures to be put together.

Preferably, the first sending module 2, the first receiving module 3, and the second receiving module 5 include 3082 chips and current limiting resistors.

Preferably, the input module 13 adopts a mechanical key or a touch screen key.

Preferably, the data processing module 7 includes a main control chip of an asynchronous transmission module.

Preferably, the memory module 10 includes, but is not limited to, a TF card.

Compared with the prior art, the electric energy meter data recovery device in the embodiment of the invention does not need manual entry, omits a complex reading step, directly utilizes the input module 13 and the storage module 10, and simply reads the electric energy meter data with low cost.

Therefore, in the embodiment of the invention, compared with the prior art, the portable intelligent electric meter data recovery device at least has the following technical effects: when the scene of a fire and different kinds of smart electric meters facing the environment are complicated, the quick automatic connection of the measuring device and the measured smart electric meters is realized, the time-sharing collection and data analysis of the data of the electric meters are realized, the collected data are more accurate, efficient and intelligent, and the user experience is improved.

EXAMPLE III

On the basis of the foregoing device embodiment, an embodiment of the present invention further provides a portable smart meter data recovery method, including the following steps, where fig. 4 is a flowchart of a portable smart meter data recovery method according to an embodiment of the present invention, as shown in fig. 4:

Step S10, generating a first baud rate signal according to a first preset mode, and sending the first baud rate signal to a tested ammeter;

step S20, receiving a feedback signal of the tested ammeter;

step S30, judging whether the parameter of the feedback signal is in a preset threshold range; if not, generating a first instruction signal, generating a second baud rate signal according to the first instruction signal and the first preset mode, sending the second baud rate signal to the tested ammeter, and returning to execute the second step; if yes, generating a second instruction signal, and receiving a primary data signal sent by the tested ammeter according to the second instruction signal;

step S40, generating a historical time signal according to a second preset mode;

and step S50, generating target data according to the historical time signal and the primary data signal.

In a specific implementation process, a device using the portable intelligent electric meter data recovery method is started, a first-time baud rate signal is generated according to a first preset mode, the first-time baud rate signal is, for example, a data signal with a baud rate of 100, the first baud rate signal is sent to a tested electric meter, the tested electric meter reads the first baud rate signal and matches the first baud rate signal with a transmission channel bandwidth index, if matching is successful, a successful feedback signal is sent, if matching is failed, a failed feedback signal is sent, the device using the portable intelligent electric meter data recovery method receives the feedback signal, and whether parameters of the feedback signal are within a preset threshold range or not is judged, for example, parameters of the feedback signal which match successfully and the feedback signal which match unsuccessfully are in different value intervals.

Further, if the matching fails, a first instruction signal is generated, and a second baud rate signal is generated according to the first instruction signal and the first preset mode. The second baud rate signal is sent to the to-be-tested electric meter by using a data signal with a baud rate of 200, and the to-be-tested electric meter reads and matches again and repeatedly sends the to-be-tested electric meter to the data recovery device. And if the matching is successful, generating a second instruction signal, and receiving the primary data signal sent by the tested electric meter according to the second instruction signal.

Further, a historical time signal is generated according to a second preset mode, wherein the second preset mode is a mode preset according to appointed time elements and comprises six time elements of year, month, day, time, minute and second.

Further, target data is generated from the historical time signal and the primary data signal, and a user analyzes a specified time period, for example, a time period in which it is presumed that a fire is likely to occur, and determines the cause of the fire, based on the target data.

Preferably, the target data is generated into a visual statistical analysis chart.

It should be noted that, the embodiment of the method is a method for using the device in the above device embodiment, and for specific implementation, reference may be made to the detailed description in the first embodiment and the second embodiment, which are not described again in the embodiments of the present invention.

Therefore, in the embodiment of the invention, compared with the prior art, the method for recovering the data of the portable intelligent electric meter at least has the following technical effects: when the scene of a fire and different kinds of smart electric meters facing the environment are complicated, the quick automatic connection of the measuring device and the measured smart electric meters is realized, the time-sharing collection and data analysis of the data of the electric meters are realized, the collected data are more accurate, efficient and intelligent, and the user experience is improved.

The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims (10)

1. The utility model provides a portable smart electric meter data recovery device which characterized in that includes:

The system comprises a baud rate generation module, a baud rate generation module and a baud rate generation module, wherein the baud rate generation module is used for generating a baud rate signal according to a first preset mode;

the first sending module is electrically connected with the baud rate generating module and used for receiving the baud rate signal and sending the baud rate signal to a tested meter;

the first receiving module is used for receiving a feedback signal sent by the tested ammeter;

the judging module is respectively electrically connected with the first receiving module and the baud rate generating module and is used for judging whether the parameter of the feedback signal is in a preset threshold range, if not, a first instruction signal is generated, and if so, a second instruction signal is generated;

the second receiving module is used for receiving the second instruction signal and receiving a primary data signal sent by the electric meter to be tested according to the second instruction signal;

the historical time generating module is used for generating a historical time signal according to a second preset mode;

and the data processing module is respectively electrically connected with the second receiving module and the historical time generating module and is used for generating target data according to the received historical time signal and the primary data signal.

2. The device for recovering data of a portable intelligent electric meter according to claim 1, wherein the measured electric meter object is an intelligent electric meter facing a fire scene.

3. The portable intelligent electric meter data recovery device according to claim 1 or 2, further comprising: and the error prompt module is electrically connected with the judgment module and is used for sending an error prompt signal when the Nth judgment that the threshold value of the feedback signal is not in the preset range is made.

4. The device for recovering the data of the portable intelligent electric meter according to the claim 3, wherein the baud rate generating module comprises: and the gear setting unit is used for setting baud rate signal gears of a plurality of levels according to the first preset mode.

5. The data recovery device for the portable intelligent electric meter according to claim 4, wherein the gear setting unit is used for setting 12 fixed gears according to the baud rate as follows: 50. 75, 100, 150, 300, 600, 1200, 4800, 9600, 19200, 38400, and 115200.

6. The device for recovering the data of the portable intelligent electric meter according to claim 4, wherein the data processing module comprises: and the table number identification unit is used for identifying the table number of the tested electric meter according to the primary data signal.

7. The device for recovering the data of the portable intelligent electric meter according to claim 6, further comprising:

the display module is electrically connected with the data processing module and is used for displaying the received data and the data processed by the data processing module;

and the data processing module is electrically connected and used for storing the received data and the data processed by the data processing module.

8. The device for recovering the data of the portable intelligent electric meter according to the claim 7, wherein the data processing module comprises a chart generating unit, and the chart generating unit is used for generating a visual statistical analysis chart according to the data processed by the data processing module.

9. The device for recovering the data of the portable intelligent electric meter according to the claim 8, characterized by further comprising a second sending module, wherein the second sending module is electrically connected with the data processing module and is used for sending the data to a data processing terminal.

10. A data recovery method using the portable intelligent electric meter data recovery device according to claims 1 to 9, comprising:

generating a first baud rate signal according to a first preset mode, and sending the first baud rate signal to a tested ammeter;

Step two, receiving a feedback signal of the tested ammeter;

step three, judging whether the parameter of the feedback signal is in a preset threshold range; if not, generating a first instruction signal, generating a second baud rate signal according to the first instruction signal and the first preset mode, sending the second baud rate signal to the tested ammeter, and returning to execute the second step; if yes, generating a second instruction signal, and receiving a primary data signal sent by the tested ammeter according to the second instruction signal;

generating a historical time signal according to a second preset mode;

and fifthly, generating target data according to the historical time signal and the primary data signal.

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