CN112687970A - Battery adopting NB-IoT module and remote measurement method thereof - Google Patents
Battery adopting NB-IoT module and remote measurement method thereof Download PDFInfo
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Abstract
The invention discloses a battery adopting an NB-IoT module and a remote measurement method thereof. A registered cloud server of the battery; the battery acquires and synchronizes the time of the cloud server; the battery sends heartbeat data packets to the cloud server regularly and monitors the connection state, and connection is reestablished once the connection is disconnected; the battery detects and sends BMS information; monitoring a TCP/UDP signal of a cloud server in real time when the battery works; and the remote measurement of the battery is realized. The invention aims to solve the problems that in the prior art, a point-to-point transmission mode is adopted, namely, one battery realizes data transmission upgrading through an external interface, the labor cost of the prior scheme is high, engineering personnel is required to check and analyze data on site, only one battery can analyze the data, and batch transmission cannot be realized.
Description
Technical Field
The invention relates to the field of batteries, in particular to a battery adopting an NB-IoT module and a remote measurement method thereof.
Background
With the rapid development and application of PACK battery technology, large-capacity batteries have been used in engineering applications in various industries, especially in battery applications for outdoor work, because of the particularity of battery packaging (except for interfaces for safety, the packaging of PACK is not detachable), if the working state of the battery needs to be obtained, the state information is usually read through (wired or wireless) connection (in a serial port, CAN, 485, bluetooth, etc.); however, for batteries whose equipment positions are stored in remote areas or special high-altitude positions (such as hangers, lifting machines on a construction site, mobile vehicles without limitation, and the like), it is necessary for engineers to go to the site to operate in real time to know their working states or to remove faults or upgrade codes, and the labor cost of the implementation scheme for maintaining and updating the batteries in batches is high.
Disclosure of Invention
The invention aims to provide a battery adopting an NB-IoT module and a remote measurement method thereof, and aims to solve the problems that in the prior art, a point-to-point transmission mode is adopted, namely, one battery realizes data transmission upgrade through an external interface (a serial port, a CAN and Bluetooth), the labor cost of the prior scheme is high, engineering personnel is required to check and analyze data on site, only one battery CAN analyze the data, and batch transmission cannot be performed.
In order to achieve the purpose, the invention provides the following technical scheme:
a battery adopting an NB-IoT module, wherein the Pack battery comprises a battery cell group module, an analog front end AFE module, an MCU module, an SOVP module and a network communication module; one end of the battery cell group module is respectively connected with a B + end, one end of a charging overcurrent fuse, an output P + end and an analog front end AFE module, the other end of the charging overcurrent fuse is connected with one end of a charging port output protection, the other end of the charging port output protection is respectively connected with an MCU module and an input C + end, the analog front end AFE module is respectively connected with the MCU module, a current detection resistor, one end of an SOVP module, a primary discharge protection switch and a primary charge protection switch,
the MCU module is respectively connected with the independent power module, the display digit/key and the load detection module, and the load detection module is connected with the POE power supply loop detection; the MCU module is respectively connected with the debugging interface and the network communication module;
the other end of the battery cell group module is respectively connected with a grounding end, a current detection resistor and a primary discharge protection switch, the primary discharge protection switch is respectively connected with one end of a primary charge protection switch and one end of a discharge overcurrent fuse, the primary charge protection switch is respectively connected with the other end of a secondary charge protection switch and the other end of the SOVP module, the secondary charge protection switch is connected with an input C-end, and the load detection module is respectively connected with the other end of the discharge overcurrent fuse and an output P-end.
Furthermore, the battery core group module is composed of a plurality of parallel and a plurality of strings of battery cores and provides energy support for battery equipment, and NTC temperature detection is added on the battery core group module; the electric chip module provides a cell voltage and temperature signal to the analog front end AFE module for detection and judgment, and transmits data to the MCU for analysis and judgment through an I2C bus;
the analog front end AFE module is a battery sampling chip in the BMS and is used for acquiring the voltage and the temperature of a battery core and transmitting the acquired data to the MCU module;
the B + end is the positive electrode of the electric core group;
the MCU module is a system center, performs SOC algorithm operation, judges and calculates cycle times, judges BMS data, controls and converts information such as state parameters according to the BMS data, transmits the BMS data, controls the on/off of an MOS tube switch, detects charging, controls a display module to display the BMS data, receives the input of a network communication module and a key module;
the input C + end is connected to the charging anode of the battery end and is used for charging the battery by external energy;
the current detection resistor is used for detecting the current passing through the voltage in the battery equipment;
the SOVP module and the overvoltage and short-circuit protection module can disconnect a battery circuit when the battery is in a voltage short circuit or overvoltage dangerous state, so that a power supply is prevented from being burnt;
the primary discharge protection switch is enabled by the MCU, and can cut off a discharge loop when undervoltage protection \ overcurrent short-circuit protection occurs, so as to play a role in protecting a power supply;
the independent power supply module is used for providing a stable power supply for the network communication module and avoiding network disconnection caused by interference of other states in the network communication process;
the display digital code/key module is an input/output module of the power supply system; the time parameter, the power supply voltage output on/off control time, the equipment number and other parameters can be input through a key;
the POE power supply loop detection module is used for providing stable voltage for the detection of the external equipment of the client,
the BC35G is a narrowband network communication module and an NBIOT module, and is a module for connecting signals transmitted by the MCU to a designated IP for communication, but the system is not limited to specifically use BC35G, and may be a BC26, BC95 or 4G module, and is used only for network communication;
the primary charging protection is used for controlling and closing the MOSFET to protect equipment when the BMS is in dangerous states such as overvoltage, overcurrent and the like during charging; the secondary charging protection has the same protection effect when the primary charging protection fails;
the secondary protection parameters are higher than the primary protection parameters and are all in a safety range;
the input C-end is a negative electrode of a power supply charging input and plays a charging role by matching with C +;
the output P-end is a negative level of the cell group and is used for providing voltage support for a power supply;
and the network module is used for converting the MCU communication signal into an IP signal and sending the IP signal to a specified IP address, so that the communication between the battery equipment and the server is realized.
A method of telepresence measurement of a battery employing an NB-IoT module, the telepresence measurement method comprising the steps of:
step 1: a registered cloud server of the battery;
step 2: performing battery timing on the basis of the step 1, and acquiring and synchronizing the time of the cloud server by using a battery;
and step 3: on the basis of the step 2, the battery sends heartbeat data packets to the cloud server regularly and monitors the connection state, and connection is reestablished once the connection is disconnected;
and 4, step 4: detecting and sending BMS information by the battery on the basis of the step 3;
and 5: monitoring a TCP/UDP signal of the cloud server in real time when the battery works on the basis of the step 4;
step 6: and the remote measurement of the battery is realized.
Has the advantages that:
1. the invention realizes the networking transmission of BMS time measurement data of batch power supply equipment, the acquisition and analysis of information and the batch sending of instructions.
2. The invention upgrades the batteries in batches, checks the data in batches, and can return to the normal mode to continue working if the operation fails.
3. The battery measures BMS information such as battery voltage, current, SOC, a cycle state, a software and hardware version number, current and residual capacity, a battery state (charging and discharging MOS on/off, discharging overcurrent/overvoltage, temperature protection, undervoltage protection, short-circuit protection and charging and discharging state) and communication signal intensity, and transmits the BMS information and the communication signal intensity to a cloud server in a specified format for data display analysis, namely, the battery can detect data such as voltage, current and temperature through an analog front end AFE module, namely an analog front end module for a slave battery core group end, a current detection module and an NTC temperature sensor. The network communication module can detect the signal intensity of the SIM card connected to the base station, the data are transmitted to the MCU module in a unified way, and the MCU module processes and judges (including charging and discharging MOS on/off, discharging overcurrent/overvoltage, temperature protection, undervoltage protection, short-circuit protection, charging and discharging states and signal intensity display) according to the obtained data.
Drawings
Fig. 1 is a schematic diagram of a network connection architecture of a battery according to the present invention.
Fig. 2 is a diagram of a battery communication architecture of the present invention.
Fig. 3 is a schematic view of the inside of the battery according to the present invention.
Fig. 4 is a control diagram of the present invention.
Fig. 5 is a diagram illustrating a format of data transmission according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the 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.
Referring to fig. 1 to 5, in the embodiment of the present invention, the internet of things module is, for example, an NBIoT module/4G module;
a battery adopting an NB-IoT module, wherein the Pack battery comprises a battery cell group module, an analog front end AFE module, an MCU module, an SOVP module and a network communication module; one end of the battery cell group module is respectively connected with a B + end, one end of a charging overcurrent fuse, an output P + end and an analog front end AFE module, the other end of the charging overcurrent fuse is connected with one end of a charging port output protection, the other end of the charging port output protection is respectively connected with an MCU module and an input C + end, the analog front end AFE module is respectively connected with the MCU module, a current detection resistor, one end of an SOVP module, a primary discharge protection switch and a primary charge protection switch,
the MCU module is respectively connected with the independent power module, the display numbers/keys and the load detection module, and the load detection module is connected with the POE power supply loop for detection; the MCU module is respectively connected with the debugging interface and the BC35G module;
the other end of the battery cell group module is respectively connected with a grounding end, a current detection resistor and a primary discharge protection switch, the primary discharge protection switch is respectively connected with one end of a primary charge protection switch and one end of a discharge overcurrent fuse, the primary charge protection switch is respectively connected with the other end of a secondary charge protection switch and the other end of the SOVP module, the secondary charge protection switch is connected with an input C-end, and the load detection module is respectively connected with the other end of the discharge overcurrent fuse and an output P-end.
Further, the electric core group module: the battery core module is composed of a plurality of parallel and a plurality of strings of battery cores and provides energy support for battery equipment, and NTC temperature detection is added on the battery core module; the electric chip module provides a cell voltage and temperature signal to the analog front end AFE module for detection and judgment; the system has the functions of LDO (providing stable 3.0V voltage for MCU), coulometer (calculating battery capacity), current detection (detecting current in battery), temperature protection, short-circuit protection, overcurrent protection, undervoltage protection, overvoltage protection and the like, and transmits data to the MCU for analysis and judgment through an I2C bus;
the analog front end AFE module: AFE (analog front end), wherein Chinese is an analog front end, a battery sampling chip is arranged in the BMS and used for collecting the voltage and the temperature of a battery core and transmitting the collected data to the MCU module;
the B + end is the positive electrode of the electric core group;
the MCU module is a system center, performs SOC algorithm operation, judges and calculates cycle times, judges BMS data, controls and converts information such as state parameters according to the BMS data, transmits the BMS data, controls the on/off of an MOS tube switch, detects charging, controls a display module to display the BMS data, receives the input of a network communication module and a key module;
the input C + terminal is connected to the charging positive electrode of the battery terminal and is used for charging the battery by an external energy source (such as a solar panel, a charger and the like);
the current detection resistor is used for detecting the current passing through the voltage in the battery equipment; (based on ohm's law I ═ U/R)
The SOVP module and the overvoltage and short-circuit protection module can disconnect a battery circuit when the battery is in a voltage short circuit or overvoltage dangerous state, so that a power supply is prevented from being burnt;
the primary discharge protection switch is enabled by the MCU, and can cut off a discharge loop when undervoltage protection \ overcurrent short-circuit protection occurs, so as to play a role in protecting a power supply;
the independent power supply module is used for providing a stable power supply for the network communication module and avoiding network disconnection caused by interference of other states in the network communication process; (for example, when the BMS is in a protection state, the output power supply is cut off, and the network module is an independent power supply module and can still work normally.)
The display digital code/key module is an input/output module of the power supply system; the time parameter, the power supply voltage output on/off control time, the equipment number and other parameters can be input through a key;
the POE power supply loop detection module is used for providing stable voltage for the detection of the external equipment of the client,
the BC35G is a narrowband network communication module and an NBIOT module, and is a module for connecting signals transmitted by the MCU to a designated IP for communication, but the system is not limited to specifically use BC35G, and may be a BC26, BC95 or 4G module, and is used only for network communication;
the primary charging protection is used for controlling and closing the MOSFET to protect equipment when the BMS is in dangerous states such as overvoltage, overcurrent and the like during charging; the secondary charging protection has the same protection effect when the primary charging protection fails due to some reason;
the secondary protection parameters are higher than the primary protection parameters and are all in a safety range;
the input C-end is a negative electrode of a power supply charging input and plays a charging role by matching with C +;
the output P-end is a negative level of the cell group and is used for providing voltage support for a power supply;
the network module (such as a BC35G module) is used for converting the MCU communication signal into an IP signal and sending the IP signal to a specified IP address, and the network module plays a role in communication between the battery device and the server.
The method comprises the steps that an NB-IOT component is externally connected with a communication pin of a battery in circuit design, data of TTL-TX and TTL-RX are converted into TCP/UDP data, the data are transmitted to a cloud server with an appointed IP address, the connection with a remote cloud server is established firstly after the battery is started, and a registration process is carried out according to the principle that real-time data are uniformly stored in the remote cloud server; and after the registration is finished, reporting of real-time data is started. The reporting default frequency of the real-time data of the battery is 30 seconds (can be modified through an instruction), once the battery gives an alarm, the alarm information needs to be reported to the cloud server in time, and meanwhile, the normal reporting of the real-time data is not influenced. After receiving the registration request ACK, the battery is required to send timing, heartbeat and real-time data parameters to the cloud server, and then the cloud server sends a device timing response to perform clock synchronization of the battery device, replies to the heartbeat and receives a real-time data reply frame.
A method of telepresence measurement of a battery employing an NB-IoT module, the telepresence measurement method comprising the steps of:
step 1: a registered cloud server of the battery;
step 2: performing battery timing on the basis of the step 1, and acquiring and synchronizing the time of the cloud server by using a battery;
and step 3: on the basis of the step 2, timing (the timing is heartbeat time which is set by the server and is defaulted to 30S.) is carried out on the battery, wherein the heartbeat mechanism is a mechanism which sends a self-defined structure body (heartbeat packet) at regular time to enable the opposite side to know that the battery is still alive so as to ensure the effectiveness of connection;
and 4, step 4: detecting and sending BMS information by the battery on the basis of the step 3;
and 5: monitoring a TCP/UDP signal of the cloud server in real time when the battery works on the basis of the step 4;
step 6: and the remote measurement of the battery is realized.
Further, step 1 is specifically a battery self-test (the battery self-test is to detect parameters of the battery itself, such as whether under-voltage, whether high-low temperature protection, whether over-current and over-voltage, etc.) is successful, then a networking mechanism is started under the condition that the working state is correct (the correct judgment standard is that no over-current, no over-voltage, no under-voltage, no high-low temperature protection is started) by simulating a front-end AFE module to sense voltage drop of each battery cell, output voltage, working current, working temperature, battery working state (charging and discharging state) and MOS transistor working state, a base station of an operator is connected through an NBIOT module, then a cloud server is connected through the base station of the operator, a data network based on a TCP/UDP protocol is used between the battery and the cloud server, and the TCP/UDP protocol is used in a transmission layer; the cloud server establishes TCP/UDP monitoring, after the batteries are correctly networked with an operator network, in order to ensure that each battery is unique, TCP/UDP connection registration of the cloud server is initiated by taking an SN code of each battery as registration information, the batteries are kept in a normal connection state and are not actively disconnected after being established, at the moment, the cloud server calculates and gives unique registration ID to the networked batteries according to serial numbers (SN numbers) uploaded by the batteries, and then the unique registration ID is sent back to the battery end in an ACK mode, if the batteries do not receive ACK signals responded by the cloud server all the time, registration is continuously initiated after 5 seconds, and after 10 times of continuous registration fails, error information is displayed on a display screen of the batteries to remind users of overhauling. (the failure to network may be due to factors such as SIM card arrearage)
Further, the step 2 is specifically that (when the cloud server sets that the battery performs charging and discharging operations in a certain minute and a certain second at a certain time, operation failure caused by time asynchronization can be avoided), when the battery networking is successful, a timing request is sent, and the service platform replies a response frame to the lower computer equipment for clock synchronization after receiving the timing request, so that the battery clock is synchronized with the cloud server clock; the cloud server replies the local time of the cloud server, and the time is set as the setup time after the battery receives the timing reply frame, and the time is accurate to the year, month and day and the hour, minute and second; and when the battery does not receive the recovery frame, timing for 5 seconds and continuing to send the correction, and if the acquisition fails for 10 times continuously, displaying error information on a display screen of the battery.
Further, the step 3 is specifically that, after the cloud server receives the heartbeat frame, a heartbeat reply frame is returned, and the heartbeat reply frame is used for maintaining the connection between the battery and the cloud server. After the battery receives the registration response frame, (namely when the battery sends data to the server each time, when the server receives the data, the server sends a piece of data back to the battery end to indicate that the server has received the data, the response frame is sent according to different battery data, the content of the data responded is different, specifically, according to the communication protocol, the communication protocol is compiled by the battery end and the server end according to project requirements), and the time interval of the heartbeat packet is determined according to the heartbeat packet parameters given by the registration response frame; and when the heartbeat reply of the cloud server is not received for 10 times continuously, the cloud service considers that the battery is disconnected, and the registration and timing are required to be initiated again.
Further, step 4 is specifically that the battery analyzes and sends its own state, and sends the battery voltage, current, SOC, cycle state, software and hardware version number, current and remaining capacity, battery state (charging and discharging MOS on/off, discharging overcurrent/overvoltage, temperature protection, undervoltage protection, short-circuit protection, charging and discharging state) and communication signal strength information in a row of information frames, and the sending format is a general data packet as shown in fig. 5, when the battery has an unexpected fault, the MCU of the battery detects the battery fault (the fault includes short circuit, overvoltage, overcurrent, undervoltage, temperature protection, etc.), and sends the real-time information and the alarm state of the battery to the cloud server at the first time through the network communication module (such as BC35G) so that the maintenance personnel can know and analyze and take measures at the first time.
Further, the step 5 is specifically a step of responding to the cloud server after the battery receives the battery configuration parameters (the parameters are not limited to the time of the output voltage of the timer switch, the long and short connection switching of the BMS information, the redirection switching of the IP address, and the like) issued by the cloud service platform, and performing operation switching according to the parameters provided by the cloud server.
Further, when the cloud server changes the IP address, the battery and the cloud server are redirected specifically, the cloud server only needs to send a redirection instruction which takes a new IP address as information content to the networked battery, when the battery receives the instruction, the battery replies ACK information and tries to connect the new IP address, when the new IP address is successfully connected, the operations of steps 1 to 6 are performed again on the new IP cloud server, when the new IP address is not successfully registered, error alarm information is sent to the original cloud server, and the original cloud server performs redirection operation.
Further, when the cloud server issues an upgrade instruction, the upgrading of the battery comprises the following steps:
s10.1: the device is restarted to be powered off, and the network is disconnected, so that the cloud server needs to be cancelled first, the cloud server is prompted, the device is disconnected to be in an upgrading state, and the device is restarted to be in a Bootloader state;
s10.2: after the battery is registered with the cloud server again, sending an upgrading response instruction;
s10.3: the battery waits for the cloud server to issue the upgrade data;
s10.4: if the check of the single battery data fails, the battery is required to resend the changed data;
s10.5: when all the data of the battery are completely received, the whole data of the battery are verified;
s10.6: if the check code of S10.5 is not in accordance with the check code issued by the cloud server, the upgrade operation is performed again from S10.1,
s10.7: if the whole package of the battery equipment fails to be checked for three times, an error code is sent to the cloud service platform, the battery returns to the original operation state, namely the battery equipment returns to the normal networking working state, an upgrading failure instruction is sent, a new instruction of the server is waited for, networking is carried out, and analysis and operation of maintenance personnel are waited for;
s10.8: and sending an upgrade success instruction after the upgrade is successful, restarting the equipment, and returning to the normal working state after the upgrade.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof; the present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein; any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (10)
1. A battery adopting an NB-IoT module is characterized in that the Pack battery comprises a battery cell group module, an analog front end AFE module, an MCU module, an SOVP module and a network communication module; one end of the battery cell group module is respectively connected with a B + end, one end of a charging overcurrent fuse, an output P + end and an analog front end AFE module, the other end of the charging overcurrent fuse is connected with one end of a charging port output protection, the other end of the charging port output protection is respectively connected with an MCU module and an input C + end, the analog front end AFE module is respectively connected with the MCU module, a current detection resistor, one end of an SOVP module, a primary discharge protection switch and a primary charge protection switch,
the MCU module is respectively connected with the independent power module, the display digit/key and the load detection module, and the load detection module is connected with the POE power supply loop detection; the MCU module is respectively connected with the debugging interface and the network communication module;
the other end of the battery cell group module is respectively connected with a grounding end, a current detection resistor and a primary discharge protection switch, the primary discharge protection switch is respectively connected with one end of a primary charge protection switch and one end of a discharge overcurrent fuse, the primary charge protection switch is respectively connected with the other end of a secondary charge protection switch and the other end of the SOVP module, the secondary charge protection switch is connected with an input C-end, and the load detection module is respectively connected with the other end of the discharge overcurrent fuse and an output P-end.
2. The battery of claim 1, wherein the cell group module is configured to: the battery core module is composed of a plurality of parallel and a plurality of strings of battery cores and provides energy support for battery equipment, and NTC temperature detection is added on the battery core module; the electric chip module provides a cell voltage and temperature signal to the analog front end AFE module for detection and judgment; data are transmitted to the MCU through an I2C bus for analysis and judgment;
the analog front end AFE module is a battery sampling chip in the BMS and is used for acquiring the voltage and the temperature of a battery core and transmitting the acquired data to the MCU module;
the B + end is the positive electrode of the electric core group;
the MCU module is a system center, performs SOC algorithm operation, judges and calculates cycle times, judges BMS data, controls and converts information such as state parameters according to the BMS data, transmits the BMS data, controls the on/off of an MOS tube switch, detects charging, controls a display module to display the BMS data, receives the input of a network communication module and a key module;
the input C + end is connected to the charging anode of the battery end and is used for charging the battery by external energy;
the current detection resistor is used for detecting the current passing through the voltage in the battery equipment;
the SOVP module and the overvoltage and short-circuit protection module can disconnect a battery circuit when the battery is in a voltage short circuit or overvoltage dangerous state, so that a power supply is prevented from being burnt;
the primary discharge protection switch is enabled by the MCU, and can cut off a discharge loop when undervoltage protection \ overcurrent short-circuit protection occurs, so as to play a role in protecting a power supply;
the independent power supply module is used for providing a stable power supply for the network communication module and avoiding network disconnection caused by interference of other states in the network communication process; the display digital code/key module is an input/output module of the power supply system; the time parameter, the power supply voltage output on/off control time, the equipment number and other parameters can be input through a key;
the POE power supply loop detection module is used for providing stable voltage for the detection of the external equipment of the client,
the BC35G is a narrowband network communication module and an NBIOT module, and is a module for connecting signals transmitted by the MCU to a designated IP for communication, but the system is not limited to specifically use BC35G, and may be a BC26, BC95 or 4G module, and is used only for network communication;
the primary charging protection is used for controlling and closing the MOSFET to protect equipment when the BMS is in dangerous states such as overvoltage, overcurrent and the like during charging; the secondary charging protection has the same protection effect when the primary charging protection fails;
the secondary protection parameters are higher than the primary protection parameters and are all in a safety range;
the input C-end is a negative electrode of a power supply charging input and plays a charging role by matching with C +;
the output P-end is a negative level of the cell group and is used for providing voltage support for a power supply;
and the network module is used for converting the MCU communication signal into an IP signal and sending the IP signal to a specified IP address, so that the communication between the battery equipment and the server is realized.
3. The method of claim 1 or 2, wherein the method of telepresence comprises the steps of:
step 1: a registered cloud server of the battery;
step 2: performing battery timing on the basis of the step 1, and acquiring and synchronizing the time of the cloud server by using a battery;
and step 3: on the basis of the step 2, the battery sends heartbeat data packets to the cloud server regularly and monitors the connection state, and connection is reestablished once the connection is disconnected;
and 4, step 4: detecting and sending BMS information by the battery on the basis of the step 3;
and 5: monitoring a TCP/UDP signal of the cloud server in real time when the battery works on the basis of the step 4;
step 6: and the remote measurement of the battery is realized.
4. The remote measurement method according to claim 3, wherein step 1 is specifically that after the battery self-inspection is successful, the analog front end AFE module senses the voltage drop of each battery cell, the output voltage, the working current, the working temperature, the working state of the battery and the working state of the MOS transistor of the battery, a networking mechanism is started under the condition that the working state is correct, the NBIOT module is connected to a base station of an operator, the base station of the operator is connected to a cloud server, a data network based on a TCP/UDP protocol is used between the battery and the cloud server, and a TCP/UDP protocol is used in a transmission layer; the cloud server establishes TCP/UDP monitoring, each battery initiates TCP/UDP connection registration to the cloud server by taking an SN code of each battery as registration information, the TCP/UDP is kept in a normal connection state and is not actively disconnected after being established, at the moment, the cloud server calculates and gives unique registration ID to the networked batteries according to serial numbers uploaded by the batteries, the unique registration ID is sent back to the battery end in an ACK mode, if the batteries do not receive ACK signals responded by the cloud server all the time, the registration is continuously initiated after 5 seconds, and after 10 times of continuous registration failure, error information is displayed on a display screen of the batteries to remind users of overhauling.
5. The remote measurement method according to claim 3, wherein the step 2 is specifically that, when the battery networking is successful, the service platform sends a timing request, and after receiving the timing request, the service platform replies a response frame to the lower computer device for clock synchronization, so that the battery clock is synchronized with the cloud server clock; setting the time number as the service setting time after the battery receives the timing recovery frame; and when the battery does not receive the recovery frame, timing for 5 seconds and continuing to send the correction, and if the acquisition fails for 10 times continuously, displaying error information on a display screen of the battery.
6. The method according to claim 3, wherein step 3 is to return a heartbeat reply frame after the cloud server receives the heartbeat frame, and the heartbeat reply frame is used to maintain the connection between the battery and the cloud server.
7. The remote measurement method according to claim 3, wherein in step 4, the battery analyzes and transmits its own state, transmits the battery voltage, current, SOC, cycle state, software and hardware version number, current and remaining capacity, battery state and communication signal strength information in the form of a general data packet in the form of lines of an information frame, and when an unexpected battery fault occurs, the MCU module of the battery sends real-time information and alarm state of the battery to the cloud server through the network communication module at the first time.
8. The remote measurement method according to claim 3, wherein the step 5 is specifically a step of replying the cloud server with a response after the battery receives the battery configuration parameter issued by the cloud service platform, and performing operation switching according to the parameter provided by the cloud server.
9. The remote measurement method according to claim 3, wherein when the cloud server changes the IP address, the battery and the cloud server are redirected, specifically, the cloud server only needs to send a redirection instruction with a new IP address as the information content to the networked battery, when the battery receives the instruction, the battery replies ACK information and tries to connect the new IP address, when the new IP address is successfully connected, the operations of steps 1 to 6 are performed again on the new IP cloud server, and when the new IP address is not successfully registered, an error alarm message is sent to the original cloud server, and the redirection operation is performed by the original cloud server.
10. The distance measuring method according to claim 3, wherein when the cloud server issues an upgrade instruction, the battery is upgraded including the steps of:
s10.1: the device is restarted to be powered off, and the network is disconnected, so that the cloud server needs to be cancelled first, the cloud server is prompted, the device is disconnected to be in an upgrading state, and the device is restarted to be in a Bootloader state;
s10.2: after the battery is registered with the cloud server again, sending an upgrading response instruction;
s10.3: the battery waits for the cloud server to issue the upgrade data;
s10.4: if the check of the single battery data fails, the battery is required to resend the changed data;
s10.5: when all the data of the battery are completely received, the whole data of the battery are verified;
s10.6: if the check code of S10.5 is not in accordance with the check code issued by the cloud server, the upgrade operation is performed again from S10.1,
s10.7: if the three times of whole package verification fails, an error code is sent to the cloud service platform, the battery returns to the original operation state, namely the battery equipment returns to the normal networking working state, an upgrading failure instruction is sent, and a new instruction of the server is waited and the server performs networking work;
s10.8: and sending an upgrade success instruction after the upgrade is successful, restarting the equipment, and returning to the normal working state after the upgrade.
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