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Circuit breaker capable of not interrupting protection during online firmware upgrading

A firmware upgrade, circuit breaker technology, applied in the protection switch operation/release mechanism, circuit, electrical components, etc., can solve the problem of protection measures, unable to provide circuits at the same time, and achieve the effect of high upgrade efficiency and high execution efficiency

Pending Publication Date: 2022-07-19
ZHEJIANG CHINT ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During the upgrade process, the existing circuit breaker controllers cannot provide effective circuit protection measures at the same time, so the firmware upgrade of the circuit breaker controller is generally waited until the power outage is maintained, which can be carried out in time without power outages. It is not suitable for occasions where effective circuit protection is still required during program upgrades

Method used

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  • Circuit breaker capable of not interrupting protection during online firmware upgrading
  • Circuit breaker capable of not interrupting protection during online firmware upgrading
  • Circuit breaker capable of not interrupting protection during online firmware upgrading

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] like figure 1 As shown, the circuit breaker in this embodiment is an intelligent circuit breaker, and further includes a circuit breaker controller, which includes an MCU control chip, and a signal sampling module, a protection drive module, a human-machine interface module, and a storage unit respectively connected to the MCU control chip. And the communication module, of course, also includes the power supply module that supplies power to each module, and the storage unit is used to store information such as circuit breaker parameters. The MCU control chip performs the protection function of the circuit breaker, including the MCU control chip collecting the current, voltage and other signals of the circuit through the signal sampling module, and judging whether the circuit has faults such as overload, undervoltage or overvoltage according to the collected current and voltage signals. When the control chip determines that there is a fault in the line, it can drive the ...

Embodiment 2

[0051] like Figure 4 As shown, the circuit breaker of the second embodiment is a two-chip solution. The second embodiment is basically the same as the first embodiment. The circuit breaker includes a power supply module for power supply, an MCU control chip, a signal sampling module, a protection drive module, a human-machine interface module and a communication module respectively connected to the MCU control chip. The MCU controls A main program and a BootLoader program are stored in the memory of the chip. The BootLoader program includes a main program firmware upgrade program and a backup main protection program. The MCU controls the chip to execute the main program firmware upgrade program and executes the backup main protection program when the timing is interrupted. Online firmware upgrade without interruption of protection without interruption of power.

[0052] The difference between the second embodiment and the first embodiment is that a backup control chip is als...

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PUM

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Abstract

A circuit breaker without interrupting protection during online firmware upgrading comprises an MCU control chip and a storage medium storing a main program and a BootLoader program, the BootLoader program comprises a main program firmware upgrading program and a standby main protection program, an interruption setting step comprises the steps that an alternating current period T is fixedly divided into N equal parts, the timing interruption time is set according to T / N, and the main program firmware upgrading program and the standby main protection program are stored in the main program firmware upgrading program; when the MCU control chip executes the main program firmware upgrading program, the standby main protection program is executed through timing interruption; the main program firmware upgrading program reads firmware upgrading package data and writes the firmware upgrading package data into a storage medium so as to update the main program; the standby main protection program samples and stores a current transient value during timing interruption, and performs protection based on judgment of the current transient value; the current effective value is calculated at the end of the alternating current period, protection is carried out based on the current effective value, and online firmware upgrading can be carried out without power failure and protection is not interrupted.

Description

technical field [0001] The invention belongs to the technical field of low-voltage electrical appliance manufacturing, and in particular relates to a circuit breaker with uninterrupted protection during online firmware upgrade. Background technique [0002] The circuit breaker is used for circuit protection of the connected circuit, and its circuit protection functions mainly include overcurrent protection, short circuit protection, leakage protection, undervoltage / overvoltage protection, etc. The existing intelligent circuit breaker is usually equipped with a circuit breaker controller, which protects the circuit by collecting the current and voltage information in the circuit, and communicates with the upper computer through the communication module, uploads the electricity consumption information, and performs the circuit according to the control of the upper computer. Protect. [0003] The existing circuit breaker controller generally does not have the firmware online u...

Claims

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Application Information

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IPC IPC(8): H01H71/10H01H71/12H01H9/54G06F8/65
CPCH01H71/10H01H71/12H01H9/54G06F8/65
Inventor 胡应龙豆明军刘源李宏德蒋杭君
Owner ZHEJIANG CHINT ELECTRIC CO LTD