CN116017807A - Constant-voltage light strip dimming monitoring method, device, computer equipment and storage medium - Google Patents

Abstract

The present application provides a dimming monitoring method, device, computer equipment and storage medium for a constant-voltage lamp strip. The method includes obtaining the fault state parameters of the constant voltage light strip; performing fault detection processing on the fault state parameters and preset fault parameters to obtain a fault detection difference; sending the fault detection difference to the light strip dimming system according to the fault detection difference Dimming signal to adjust the output state of the constant voltage light strip. By collecting the fault state parameters, it is convenient to sample the fault conditions of the constant voltage light strip, and then compare the fault state parameters with the preset fault parameters, so as to determine the current working state difference of the constant voltage light strip, and finally according to The difference degree of the current fault state of the constant-voltage light strip adjusts the current output state of the constant-voltage light strip, which is convenient for monitoring the dimming state of the constant-voltage light strip.

Description

Constant-voltage light strip dimming monitoring method, device, computer equipment and storage medium

technical field

The present invention relates to the technical field of lamp strip dimming, in particular to a constant-voltage lamp strip dimming monitoring method, device, computer equipment and storage medium.

Background technique

At present, the demand for light strip dimming and color matching products in the market is increasing. This kind of light strip can adjust different color temperatures through the control device to meet the needs of different occasions in many occasions such as hotels and homes. DALI digital addressable lighting interface as a A new intelligent lighting system control protocol has been widely used in various lighting projects because of its simple structure, convenient installation, easy operation, and excellent functions.

Due to the updated iterations and specifications of application technology to meet more dimming compatibility issues, the DALI Alliance launched DALI-2, the second largest version of the DALI protocol standard, requiring DALI-2 certified LED drivers to support fault status detection. , that is, output open circuit and short circuit detection. For the vast majority of DALI constant voltage dimming and color control devices at present, there is no independent open circuit and short circuit detection, which cannot meet the requirements of the DALI-2 protocol. When it is small or when the pulse width (PWM) signal duty ratio is small, it is open or short circuited. At this time, the open circuit or short circuit state will not be detected, resulting in false triggering or no protection of the system after a fault occurs, which cannot meet the requirements of the DALI-2 protocol. .

Contents of the invention

The object of the present invention is to overcome the deficiencies in the prior art, and provide a constant-voltage lamp strip dimming monitoring method, device, computer equipment and storage medium that are convenient for dimming fault detection of the lamp strip.

The purpose of the present invention is achieved through the following technical solutions:

A dimming monitoring method for a constant voltage light strip, the method comprising:

Obtain the fault state parameters of the constant voltage light strip;

Performing fault detection processing on the fault state parameters and preset fault parameters to obtain a fault detection difference;

Sending a dimming signal to the light strip dimming system according to the fault detection difference to adjust the output state of the constant voltage light strip.

In one of the embodiments, the obtaining the fault state parameters of the constant voltage light strip includes: obtaining the open circuit fault parameter of the constant voltage light strip.

In one of the embodiments, performing fault detection processing on the fault state parameter and the preset fault parameter to obtain the fault detection difference includes: performing fault detection comparison on the open circuit fault parameter and the preset open circuit state parameter, Obtain the open-circuit fault detection difference.

In one of the embodiments, the sending a dimming signal to the light strip dimming system according to the fault detection difference to adjust the output state of the constant voltage light strip includes: detecting the difference between the open circuit fault detection difference and Whether the preset open-circuit differential component matches; when the open-circuit fault detection differential component matches the preset open-circuit differential component, an open-circuit dimming signal is sent to the light strip dimming system, so that the constant voltage light strip The output electronic switch tube is closed.

In one of the embodiments, the obtaining the fault status parameters of the constant voltage lamp strip includes: obtaining the short circuit fault parameter of the constant voltage lamp strip.

In one of the embodiments, performing fault detection processing on the fault state parameter and the preset fault parameter to obtain the fault detection difference includes: performing short fault comparison on the short circuit fault parameter and the preset short circuit state parameter, A short-circuit fault detection difference amount is obtained.

In one of the embodiments, the sending a dimming signal to the light strip dimming system according to the fault detection difference to adjust the output state of the constant voltage light strip includes: detecting the difference between the short circuit fault detection difference and Whether the preset short-circuit differential component matches; when the short-circuit fault detection differential component does not match the preset short-circuit differential component, send a channel dimming signal to the light strip dimming system, so that the constant voltage light strip The output electronic switch tube is turned on.

A constant voltage light strip dimming monitoring device, comprising: a light strip fault collector and a constant voltage dimming main board; the light strip fault collector is used to obtain fault state parameters of the constant voltage light strip; the constant voltage dimming main board The input end of the LED strip fault collector is connected to the output end of the light strip fault collector, and the constant voltage dimming main board is used to perform fault detection processing on the fault state parameters and preset fault parameters to obtain a fault detection difference; according to the The fault detection differential component sends a dimming signal to the light strip dimming system to adjust the output state of the constant voltage light strip.

A computer device, comprising a memory and a processor, the memory stores a computer program, and the processor implements the following steps when executing the computer program:

Obtain the fault state parameters of the constant voltage light strip;

Performing fault detection processing on the fault state parameters and preset fault parameters to obtain a fault detection difference;

Sending a dimming signal to the light strip dimming system according to the fault detection difference to adjust the output state of the constant voltage light strip.

A computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, the following steps are implemented:

Obtain the fault state parameters of the constant voltage light strip;

Performing fault detection processing on the fault state parameters and preset fault parameters to obtain a fault detection difference;

Sending a dimming signal to the light strip dimming system according to the fault detection difference to adjust the output state of the constant voltage light strip.

Compared with the prior art, the present invention has at least the following advantages:

By collecting the fault state parameters, it is convenient to sample the fault conditions of the constant voltage light strip, and then compare the fault state parameters with the preset fault parameters, so as to determine the current working state difference of the constant voltage light strip, and finally according to The difference degree of the current fault state of the constant voltage light strip adjusts the current output state of the constant voltage light strip, which is convenient for monitoring the dimming state of the constant voltage light strip.

Description of drawings

In order to illustrate the technical solutions of the embodiments of the present invention more clearly, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention, and thus It should be regarded as a limitation on the scope, and those skilled in the art can also obtain other related drawings based on these drawings without creative work.

Fig. 1 is a flow chart of a method for monitoring the dimming of a constant-voltage lamp strip in an embodiment;

Fig. 2 is the internal structural diagram of computer equipment in an embodiment;

Fig. 3 is a circuit diagram of a constant voltage lamp strip dimming monitoring circuit in an embodiment;

Fig. 4 is a circuit diagram of an open circuit detection circuit in the dimming monitoring circuit of the constant voltage lamp strip shown in Fig. 3;

FIG. 5 is a circuit diagram of a short circuit detection circuit in the dimming monitoring circuit of the constant voltage lamp strip shown in FIG. 3 .

Detailed ways

In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the associated drawings. Preferred embodiments of the invention are shown in the accompanying drawings. However, the present invention can be embodied in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

It should be noted that when an element is referred to as being “fixed” to another element, it can be directly on the other element or there can also be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and similar expressions are used herein for purposes of illustration only and are not intended to represent the only embodiments.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field of the invention. The terminology used herein in the description of the present invention is only for the purpose of describing specific embodiments, and is not intended to limit the present invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

The invention relates to a dimming monitoring method for a constant voltage lamp strip. In one of the embodiments, the constant voltage light strip dimming monitoring method includes obtaining the fault state parameters of the constant voltage light strip; performing fault detection processing on the fault state parameters and preset fault parameters to obtain fault detection difference; Sending a dimming signal to the light strip dimming system according to the fault detection difference to adjust the output state of the constant voltage light strip. By collecting the fault state parameters, it is convenient to sample the fault conditions of the constant voltage light strip, and then compare the fault state parameters with the preset fault parameters, so as to determine the current working state difference of the constant voltage light strip, and finally according to The difference degree of the current fault state of the constant voltage light strip adjusts the current output state of the constant voltage light strip, which is convenient for monitoring the dimming state of the constant voltage light strip.

Please refer to FIG. 1 , which is a flow chart of a dimming monitoring method for a constant-voltage lamp strip according to an embodiment of the present invention. The method for monitoring dimming of constant-voltage lamp strips includes part or all of the following steps.

S100: Acquiring fault state parameters of the constant voltage light strip.

In this embodiment, the fault state parameter is the working fault detection signal of the constant voltage light strip, that is, the fault state parameter is the current working state of the constant voltage light strip, that is, the fault state parameter is The real-time output fault status of the constant voltage light strip. By collecting the fault state parameters, it is convenient to monitor the current working conditions of the constant voltage light strip in real time, so as to determine the output fault condition of the constant voltage light strip, so as to facilitate the determination of the constant voltage light strip in The dimming fault state during the working process facilitates subsequent determination of the real-time output fault state of the constant voltage light strip during dimming output.

S200: Perform fault detection processing on the fault state parameters and preset fault parameters to obtain a fault detection difference.

In this embodiment, the fault state parameter is the working fault detection signal of the constant voltage light strip, that is, the fault state parameter is the current working state of the constant voltage light strip, that is, the fault state parameter is The real-time output fault status of the constant voltage light strip. By collecting the fault state parameters, it is convenient to monitor the current working conditions of the constant voltage light strip in real time, so as to determine the output fault condition of the constant voltage light strip, so as to facilitate the determination of the constant voltage light strip in The dimming fault state during the working process facilitates subsequent determination of the real-time output fault state of the constant voltage light strip during dimming output. The preset fault parameter is the standard working fault detection signal of the constant voltage light strip, that is, the preset fault parameter is the specified working state of the constant voltage light strip, that is, the preset fault parameter is the Standard output fault status for constant voltage light strips. Through the fault detection processing of the fault state parameters and preset fault parameters, the current output state of the constant voltage light strip is compared with the standard fault state, so as to facilitate the determination of the current dimming of the constant voltage light strip The difference degree of failure is output, so as to facilitate the determination of the failure of the current dimming output of the constant voltage light strip.

S300: Send a dimming signal to a light strip dimming system according to the fault detection difference to adjust an output state of the constant voltage light strip.

In this embodiment, the fault detection difference is the difference between the fault state parameter and the preset fault parameter, and the fault state parameter is the working fault detection signal of the constant voltage light strip, that is, the The fault state parameter is the current working state of the constant voltage light strip, that is, the fault state parameter is the real-time output fault state of the constant voltage light strip. By collecting the fault state parameters, it is convenient to monitor the current working conditions of the constant voltage light strip in real time, so as to determine the output fault condition of the constant voltage light strip, so as to facilitate the determination of the constant voltage light strip in The dimming fault state during the working process facilitates subsequent determination of the real-time output fault state of the constant voltage light strip during dimming output. The preset fault parameter is the standard working fault detection signal of the constant voltage light strip, that is, the preset fault parameter is the specified working state of the constant voltage light strip, that is, the preset fault parameter is the Standard output fault status for constant voltage light strips. Through the fault detection processing of the fault state parameters and preset fault parameters, the current output state of the constant voltage light strip is compared with the standard fault state, so as to facilitate the determination of the current dimming of the constant voltage light strip The difference degree of failure is output, so as to facilitate the determination of the failure of the current dimming output of the constant voltage light strip. In this way, after the fault detection difference is obtained, whether the current dimming output state of the constant voltage light strip is faulty can be determined by the degree of dimming output fault difference reflected by the fault detection difference. It is convenient to monitor the dimming state of the constant-voltage lamp strip, thereby facilitating the dimming output control of the constant-voltage lamp strip, and avoiding invalid output when the constant-voltage lamp strip is in a fault state.

In each of the above-mentioned embodiments, by collecting the fault state parameters, it is convenient to sample the fault conditions of the constant voltage light strip, and then compare the fault state parameters with the preset fault parameters, so as to determine the current state of the constant voltage light strip. According to the difference in working status, the current output state of the constant voltage lamp strip is adjusted according to the current fault state difference of the constant voltage lamp strip, so as to facilitate the monitoring of the dimming state of the constant voltage lamp strip.

In one of the embodiments, the obtaining the fault state parameters of the constant voltage light strip includes: obtaining the open circuit fault parameter of the constant voltage light strip. In this embodiment, the fault state parameter is the working fault detection signal of the constant voltage light strip, that is, the fault state parameter is the current working state of the constant voltage light strip, that is, the fault state parameter is The real-time output fault status of the constant voltage light strip. By collecting the fault state parameters, it is convenient to monitor the current working conditions of the constant voltage light strip in real time, so as to determine the output fault condition of the constant voltage light strip, so as to facilitate the determination of the constant voltage light strip in The dimming fault state during the working process facilitates subsequent determination of the real-time output fault state of the constant voltage light strip during dimming output. The fault state parameter is the open circuit fault parameter of the constant voltage light strip, and the open circuit fault parameter is used as the state value of the open circuit fault occurrence of the constant voltage light strip at the time of dimming output, that is, the open circuit fault parameter is used as The open-circuit state quantity of the constant-voltage light strip, that is, the open-circuit fault parameter corresponds to the open-circuit condition of the constant-voltage light strip, and the open-circuit fault parameter is used to display the current dimming output open circuit of the constant-voltage light strip Whether or not, it is convenient for subsequent detection of the open circuit of the constant voltage light strip.

Further, performing fault detection processing on the fault state parameters and preset fault parameters to obtain fault detection difference components includes: performing fault detection comparisons on the open circuit fault parameters and preset open circuit state parameters to obtain open circuit fault detection difference amount. In this embodiment, the fault state parameter is the working fault detection signal of the constant voltage light strip, that is, the fault state parameter is the current working state of the constant voltage light strip, that is, the fault state parameter is The real-time output fault status of the constant voltage light strip. By collecting the fault state parameters, it is convenient to monitor the current working conditions of the constant voltage light strip in real time, so as to determine the output fault condition of the constant voltage light strip, so as to facilitate the determination of the constant voltage light strip in The dimming fault state during the working process facilitates subsequent determination of the real-time output fault state of the constant voltage light strip during dimming output. The fault state parameter is the open circuit fault parameter of the constant voltage light strip, and the open circuit fault parameter is used as the state value of the open circuit fault occurrence of the constant voltage light strip at the time of dimming output, that is, the open circuit fault parameter is used as The open-circuit state quantity of the constant-voltage light strip, that is, the open-circuit fault parameter corresponds to the open-circuit condition of the constant-voltage light strip, and the open-circuit fault parameter is used to display the current dimming output open circuit of the constant-voltage light strip Whether or not, it is convenient for subsequent detection of the open circuit of the constant voltage light strip. The preset open-circuit state parameter is the standard state value of the open-circuit fault occurrence of the constant-voltage light strip during dimming output, that is, the preset open-circuit state parameter is the standard open-circuit state quantity of the constant-voltage light strip, That is, the preset open circuit state parameter corresponds to the specified open circuit condition of the constant voltage light strip. Calculating the difference between the open-circuit fault parameter and the preset open-circuit state parameter is convenient for detecting the current open-circuit condition of the constant-voltage light strip, thereby facilitating the determination of the current dimming output of the constant-voltage light strip The degree of difference between the state and the open output state.

Further, the sending a dimming signal to the light strip dimming system according to the fault detection difference to adjust the output state of the constant voltage light strip includes: detecting the difference between the open circuit fault detection difference and the preset open circuit Whether the differential component matches; when the open-circuit fault detection differential component matches the preset open-circuit differential component, an open-circuit dimming signal is sent to the light strip dimming system, so that the output electronic switch of the constant voltage light strip Tube closed. In this embodiment, the open-circuit fault detection difference is obtained based on the open-circuit fault parameter and the preset open-circuit state parameter, and the open-circuit fault parameter is used as the open circuit of the constant-voltage light strip during dimming output. The state value of the fault occurrence, that is, the open-circuit fault parameter is used as the open-circuit state quantity of the constant-voltage lamp strip, that is, the open-circuit fault parameter corresponds to the open-circuit condition of the constant-voltage lamp strip, and the open-circuit fault parameter is used It is used to display whether the current dimming output of the constant voltage light strip is open or not, so as to facilitate subsequent detection of the open circuit of the constant voltage light strip. The preset open-circuit state parameter is the standard state value of the open-circuit fault occurrence of the constant-voltage light strip during dimming output, that is, the preset open-circuit state parameter is the standard open-circuit state quantity of the constant-voltage light strip, That is, the preset open circuit state parameter corresponds to the specified open circuit condition of the constant voltage light strip. The open-circuit fault detection difference is compared with the preset open-circuit difference, and the open-circuit fault detection difference matches the preset open-circuit difference, indicating that the constant voltage light strip is in an output open state, that is, indicating It shows that the dimming output circuit of the constant voltage light strip is an open circuit, which means that the output of the constant voltage light strip is an open circuit. In this way, at this time, the constant voltage light strip is in an open circuit fault state, and an open circuit dimming signal is sent to the light strip dimming system, so that the output electronic switch tube of the constant voltage light strip is turned off, which is used to protect the constant voltage light strip. The output electronic switching tube of the pressure lamp strip also effectively protects the constant voltage lamp strip.

In one of the embodiments, the obtaining the fault status parameters of the constant voltage lamp strip includes: obtaining the short circuit fault parameter of the constant voltage lamp strip. In this embodiment, the fault state parameter is the working fault detection signal of the constant voltage light strip, that is, the fault state parameter is the current working state of the constant voltage light strip, that is, the fault state parameter is The real-time output fault status of the constant voltage light strip. By collecting the fault state parameters, it is convenient to monitor the current working conditions of the constant voltage light strip in real time, so as to determine the output fault condition of the constant voltage light strip, so as to facilitate the determination of the constant voltage light strip in The dimming fault state during the working process facilitates subsequent determination of the real-time output fault state of the constant voltage light strip during dimming output. The fault state parameter is the short-circuit fault parameter of the constant-voltage lamp strip, and the short-circuit fault parameter is used as the state value of the short-circuit fault occurrence of the constant-voltage lamp strip during dimming output, that is, the short-circuit fault parameter is used as The short-circuit state quantity of the constant-voltage lamp strip, that is, the short-circuit fault parameter corresponds to the short-circuit condition of the constant-voltage lamp strip, and the short-circuit fault parameter is used to show that the current dimming output of the constant-voltage lamp strip is short-circuited Whether or not, it is convenient for subsequent detection of the short circuit of the constant voltage light strip.

Further, performing fault detection processing on the fault state parameters and preset fault parameters to obtain fault detection difference components includes: performing short fault comparison on the short circuit fault parameters and preset short circuit state parameters to obtain short circuit fault detection difference amount. In this embodiment, the fault state parameter is the working fault detection signal of the constant voltage light strip, that is, the fault state parameter is the current working state of the constant voltage light strip, that is, the fault state parameter is The real-time output fault status of the constant voltage light strip. By collecting the fault state parameters, it is convenient to monitor the current working conditions of the constant voltage light strip in real time, so as to determine the output fault condition of the constant voltage light strip, so as to facilitate the determination of the constant voltage light strip in The dimming fault state during the working process facilitates subsequent determination of the real-time output fault state of the constant voltage light strip during dimming output. The fault state parameter is the short-circuit fault parameter of the constant-voltage lamp strip, and the short-circuit fault parameter is used as the state value of the short-circuit fault occurrence of the constant-voltage lamp strip during dimming output, that is, the short-circuit fault parameter is used as The short-circuit state quantity of the constant-voltage lamp strip, that is, the short-circuit fault parameter corresponds to the short-circuit condition of the constant-voltage lamp strip, and the short-circuit fault parameter is used to show that the current dimming output of the constant-voltage lamp strip is short-circuited Whether or not, it is convenient for subsequent detection of the short circuit of the constant voltage light strip. The preset short-circuit state parameter is the standard state value of the short-circuit fault occurrence of the constant-voltage lamp strip during dimming output, that is, the preset short-circuit state parameter is taken as the standard short-circuit state quantity of the constant-voltage lamp strip, That is, the preset short-circuit state parameter corresponds to the specified short-circuit condition of the constant-voltage light strip. Calculating the difference between the short-circuit fault parameter and the preset short-circuit state parameter is convenient for detecting the current short-circuit condition of the constant-voltage lamp strip, thereby facilitating the determination of the current dimming output of the constant-voltage lamp strip The degree of difference between the state and the state of the shorted output.

Furthermore, the sending a dimming signal to the light strip dimming system according to the fault detection difference to adjust the output state of the constant voltage light strip includes: detecting the short circuit fault detection difference and the preset short circuit Whether the differential component matches; when the short-circuit fault detection differential component does not match the preset short-circuit differential component, a channel dimming signal is sent to the light strip dimming system, so that the output electronic of the constant voltage light strip The switch tube is turned on. In this embodiment, the short-circuit fault detection difference is obtained based on the short-circuit fault parameter and the preset short-circuit state parameter, and the short-circuit fault parameter is used as the short-circuit of the constant-voltage lamp strip during dimming output. The state value of the fault occurrence, that is, the short-circuit fault parameter is used as the short-circuit state quantity of the constant-voltage lamp strip, that is, the short-circuit fault parameter corresponds to the short-circuit condition of the constant-voltage lamp strip, and the short-circuit fault parameter is used It is used to display whether the current dimming output of the constant voltage light strip is short-circuited or not, so as to facilitate subsequent detection of the short circuit condition of the constant voltage light strip. The preset short-circuit state parameter is the standard state value of the short-circuit fault occurrence of the constant-voltage lamp strip during dimming output, that is, the preset short-circuit state parameter is taken as the standard short-circuit state quantity of the constant-voltage lamp strip, That is, the preset short-circuit state parameter corresponds to the specified short-circuit condition of the constant-voltage light strip. The short-circuit fault detection differential is compared with the preset short-circuit differential, and the short-circuit fault detection differential does not match the preset short-circuit differential, which indicates that the constant voltage light strip is in a normal output state, that is It shows that the dimming output circuit of the constant voltage light strip is a path, that is, it shows that the output of the constant voltage light strip is a normal output. In this way, at this time, the constant voltage light strip is in a normal output state, and a channel dimming signal is sent to the light strip dimming system, so that the output electronic switch tube of the constant voltage light strip is turned on. In another embodiment, when the short-circuit fault detection difference matches the preset short-circuit difference, a short-circuit dimming signal is sent to the light strip dimming system, so that the output of the constant-voltage light strip The electronic switch tube is closed.

Under the actual dimming work of the constant-voltage lamp strip, the fault detection of the constant-voltage lamp strip is through two different detection circuits, that is, an open circuit protection detection circuit and a short circuit protection detection circuit. These two detection circuits The short-circuit and open-circuit states of the constant-voltage lamp strips during dimming output are respectively detected, so as to distinguish the short-circuit and open-circuit conditions. However, in the actual detection process, the detection end of the open-circuit protection detection circuit and the detection end of the short-circuit protection detection circuit sometimes have the risk of overlapping, which is caused by the limited portability of the constant voltage light strip. It is easy to confuse the state of short circuit and open circuit, and it is impossible to accurately distinguish the dimming failure of the constant voltage light strip.

In order to facilitate the distinction between short-circuit and open-circuit states, the step of sending a dimming signal to the light strip dimming system according to the fault detection differential component to adjust the output state of the constant voltage light strip, and then further includes the following steps:

Acquiring the on-ratio voltage and open-source voltage of the constant-voltage lamp strip according to the fault state parameters;

Detecting whether the open ratio voltage is equal to the open source voltage;

When the open-ratio voltage is equal to the open-source voltage, detecting whether the open-ratio voltage is less than a preset voltage;

When the on-ratio voltage is less than the preset voltage, an open-circuit dimming feedback signal is sent to the light strip dimming system to correct the open-circuit output state of the constant-voltage light strip.

In this embodiment, the open ratio voltage is the comparison voltage output by the open circuit comparator of the open circuit protection detection circuit, that is, the open ratio voltage is the comparison between the output terminal voltage of the constant voltage light strip and the reference voltage Quantity, that is, the open ratio voltage is used as the comparison voltage of the voltage corresponding to the open circuit fault parameter. By collecting the open ratio voltage, it is convenient to determine the difference between the voltage corresponding to the open circuit fault parameter and the open ratio voltage. Therefore, it is convenient to determine the output pre-state of the constant-voltage lamp strip, so that the open-ratio voltage and the voltage corresponding to the open-circuit fault parameter are isolated from each other. Specifically, the voltage corresponding to the open ratio voltage and the open circuit fault parameter is the voltage across the open circuit detection diode, and the open circuit detection diode is used to isolate the open circuit ratio voltage from the open circuit fault parameter to avoid the open circuit fault The effect of the parameter on the open-ratio voltage facilitates the distinction between an open circuit and a short circuit. The open-source voltage is the voltage on the base of the short-circuit detection transistor of the short-circuit protection detection circuit, that is, the open-source voltage is the source voltage of the output MOS tube of the constant-voltage lamp strip, that is, the open-source voltage is used as the source voltage The comparison voltage of the voltage corresponding to the short-circuit fault parameter, the voltage corresponding to the open-source voltage and the short-circuit fault parameter is the voltage on the base and collector of the short-circuit detection transistor, which is convenient for corresponding the open-source voltage and the short-circuit fault parameter to avoid the impact of the short-circuit fault parameter on the open-source voltage. The open-ratio voltage is equal to the open-source voltage, indicating that the constant-voltage light strip is in a fault state, and the open-ratio voltage is less than the preset voltage, indicating that the constant-voltage light strip is in an open-circuit output state, That is to say, the constant voltage light strip is in the open circuit state of the dimming output, that is, the output of the constant voltage light strip is open circuit, and the open circuit dimming feedback signal is sent to the light strip dimming system to correct the output of the constant voltage light strip. The open-circuit output state of the constant-voltage light strip ensures that the dimming output state of the constant-voltage light strip is an open-circuit state, which is easy to distinguish from a short-circuit state. In another embodiment, when the on-ratio voltage is greater than or equal to the preset voltage, a short-circuit dimming feedback signal is sent to the light strip dimming system to correct the short-circuit output state of the constant-voltage light strip .

Further, the detection of whether the open ratio voltage is equal to the open source voltage further includes the following steps:

When the open-ratio voltage is not equal to the open-source voltage, detect whether the fault state parameter matches the normal dimming state parameter;

When the fault state parameter does not match the normal dimming state parameter, an open-short lap alarm signal is sent to the light strip dimming system.

In this embodiment, the open-ratio voltage is not equal to the open-source voltage, indicating that the constant-voltage light strip is in a non-fault state, that is, it indicates that the constant-voltage light strip is in a dimming output state and is non-short-circuit or The open state means that the output of the constant-voltage light strip is a non-fault output, and at this time the open-circuit detection end and the short-circuit detection end of the constant-voltage light strip detect the same voltage. In order to distinguish between the overlapping of the open circuit detection terminal and the short circuit detection terminal, the fault state parameter is analyzed and processed in depth, that is, the fault state parameter is differentiated from the normal dimming state parameter, so as to determine the Check whether there is an overlap in the dimming fault detection of the constant voltage light strip. The fault state parameter does not match the normal dimming state parameter, which indicates that the voltage detected by the open circuit detection terminal and the short circuit detection terminal of the constant voltage light strip is the same, that is, it indicates that the open circuit detection terminal of the constant voltage light strip There is an overlap with the short-circuit detection terminal, which means that the open-circuit detection terminal and the short-circuit detection terminal of the constant voltage light strip are in contact with each other. At this time, an open-short lap alarm signal is sent to the light strip dimming system to facilitate The short-circuit and open-circuit fault detection of the constant-voltage lamp strip is alarmed, so that it is convenient to know in time that there is an abnormal situation of detection end lapping in the dimming output fault detection of the constant-voltage lamp strip, and it is convenient to timely monitor the constant-voltage lamp The dimming output states of the strips can be accurately distinguished, avoiding confusion of open circuit and short circuit, and improving the detection accuracy of the dimming output failure of the constant voltage lamp strip.

The above-mentioned various preset variables are all set in the database, which is convenient for timely extraction, and different preset variables are placed in different storage units, that is, in different storage stacks, and the fault state parameters, open ratio voltage and open source voltage It can be collected by a corresponding detector, for example, collected by a light strip fault collector.

In one of the embodiments, the present application also provides a constant voltage light strip dimming monitoring device, which is realized by using the constant voltage light strip dimming monitoring method described in any one of the above embodiments. In one of the embodiments, the device for monitoring dimming of constant-voltage strip lights has functional modules corresponding to each step of the method for monitoring dimming of constant-voltage strip lights. The constant voltage light strip dimming monitoring device includes a light strip fault collector and a constant voltage dimming main board; the light strip fault collector is used to obtain the fault status parameters of the constant voltage light strip; the input of the constant voltage dimming main board terminal is connected to the output terminal of the light strip fault collector, and the constant voltage dimming main board is used to perform fault detection processing on the fault state parameters and preset fault parameters to obtain fault detection difference; according to the fault detection The differential component sends a dimming signal to the light strip dimming system to adjust the output state of the constant voltage light strip.

In this embodiment, the fault state parameters are collected by the light strip fault collector so as to sample the fault conditions of the constant voltage light strip, and then the constant voltage dimming main board compares the fault state parameters with the preset fault parameters, In order to determine the difference of the current working state of the constant voltage light strip, the constant voltage dimming main board adjusts the current output state of the constant voltage light strip according to the current fault state difference of the constant voltage light strip, so as to facilitate the adjustment of the constant voltage light strip. Dimming status is monitored.

All or part of the modules in the above-mentioned constant voltage light strip dimming monitoring device can be realized by software, hardware and combinations thereof. The above-mentioned modules can be embedded in or independent of the processor in the computer device in the form of hardware, and can also be stored in the memory of the computer device in the form of software, so that the processor can invoke and execute the corresponding operations of the above-mentioned modules.

In one embodiment, a computer device is provided. The computer device may be a server, and its internal structure may be as shown in FIG. 2 . The computer device includes a processor, memory and a network interface connected by a system bus. Wherein, the processor of the computer device is used to provide calculation and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, computer programs and databases. The internal memory provides an environment for the operation of the operating system and computer programs in the non-volatile storage medium. The database of the computer equipment is used for storing data such as fault state parameters, fault detection difference components and dimming signals. The network interface of the computer device is used to communicate with an external terminal via a network connection. When the computer program is executed by the processor, a dimming monitoring method for constant-voltage lamp strips is realized.

Those skilled in the art can understand that the structure shown in Figure 2 is only a block diagram of a partial structure related to the solution of the present application, and does not constitute a limitation to the computer equipment on which the solution of the application is applied. The specific computer equipment can be More or fewer components than shown in the figures may be included, or some components may be combined, or have a different arrangement of components.

In one embodiment, the present application also provides a computer device, including a memory and a processor, where a computer program is stored in the memory, and the processor implements the steps in the above method embodiments when executing the computer program.

In one embodiment, the present application also provides a computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, the steps in the foregoing method embodiments are implemented.

Those of ordinary skill in the art can understand that all or part of the processes in the methods of the above embodiments can be implemented through computer programs to instruct related hardware, and the computer programs can be stored in a non-volatile computer-readable memory In the medium, when the computer program is executed, it may include the processes of the embodiments of the above-mentioned methods. Wherein, any references to memory, storage, database or other media used in the various embodiments provided in the present application may include at least one of non-volatile memory and volatile memory. Non-volatile memory may include read-only memory (Read-Only Memory, ROM), magnetic tape, floppy disk, flash memory or optical memory, etc. Volatile memory can include Random Access Memory (RAM) or external cache memory. By way of illustration and not limitation, RAM can take many forms, such as Static Random Access Memory (SRAM) or Dynamic Random Access Memory (DRAM).

In one embodiment, the present application also provides a constant-voltage strip light dimming monitoring circuit, please refer to FIG. 3 , which is a circuit diagram of a constant-voltage strip light dimming monitoring circuit according to an embodiment of the present invention.

The constant-voltage strip light dimming monitoring circuit 10 of an embodiment includes a light strip circuit 100 and a fault detection circuit 200 . The light strip circuit 100 includes a constant voltage light strip U1, a first electronic switch tube Q1 and a first resistor R1. The first end of the constant voltage lamp strip U1 is used to connect to a constant voltage source, the second end of the constant voltage lamp strip U1 is connected to the first end of the first electronic switch tube Q1, and the first electronic The second terminal of the switch tube Q1 is grounded through the first resistor R1, and the control terminal of the first electronic switch tube Q1 is used to connect with the modulation output terminal of the light strip dimming processor. The fault detection circuit 200 includes an open circuit detection circuit 210 and a short circuit detection circuit 220 . The open circuit detection circuit 210 includes an open circuit comparator U2, an open circuit diode D1 and a second resistor R4. The second end of the constant voltage lamp strip U1 is connected to the first comparison end of the open comparator U2, the second comparison end of the open comparator U2 is used to connect to the comparison power supply, and the open comparator U2 The output end is connected to the cathode of the open-circuit diode D1, the first end of the second resistor R4 is used to connect to the reference power supply, and the second end of the second resistor R4 is connected to the anode of the open-circuit diode D1, so The second end of the second resistor R4 is connected to the open circuit detection end of the light strip dimming processor. The short circuit detection circuit 220 includes a second electronic switch Q3 and a third resistor R5. The second end of the first electronic switch tube Q1 is connected to the control terminal of the second electronic switch tube Q3, the first end of the third resistor R5 is connected to the reference power supply, and the third resistor R5 The second end is connected to the first end of the second electronic switch tube Q3, the first end of the second electronic switch tube Q3 is connected to the short-circuit detection end of the light strip dimming processor, and the second electronic The second end of the switch tube Q3 is grounded.

In this embodiment, the open circuit comparator U2 collects the voltage of the first terminal of the first electronic switch tube Q1, and the control terminal of the second electronic switch tube Q3 collects the voltage of the second terminal of the first electronic switch tube Q1, so that the open circuit detection voltage Isolation from the short-circuit detection voltage facilitates independent sampling of the open-circuit detection voltage and the short-circuit detection voltage, thereby facilitating independent open-circuit and short-circuit detection. In another embodiment, the first electronic switch tube Q1 is an N-type MOS tube, the first end of the first electronic switch tube Q1 is the drain of the N-type MOS tube, and the first electronic switch tube Q1 The second end of the first electronic switching transistor Q1 is the source of the N-type MOS transistor, and the control end of the first electronic switch transistor Q1 is the gate of the N-type MOS transistor. The second electronic switching tube Q3 is an NPN transistor, the first end of the second electronic switching tube Q3 is the collector of the NPN transistor, and the second end of the second electronic switching tube Q3 is the emitter of the NPN transistor. , the control terminal of the second electronic switch tube Q3 is the base of the NPN transistor.

In one embodiment, please refer to FIG. 4, the open circuit detection circuit 210 further includes a fourth resistor R2, the second end of the constant voltage lamp strip U1 is connected to the first end of the fourth resistor R2, so The second end of the fourth resistor R2 is connected to the first comparison end of the open comparator U2. In this embodiment, the fourth resistor R2 is respectively connected to the constant voltage lamp strip U1 and the open circuit comparator U2, specifically, the fourth resistor R2 is connected in series with the constant voltage lamp strip U1. Between the two terminals and the first comparison terminal of the open comparator U2, the fourth resistor R2 collects the voltage of the dimming output state of the constant voltage lamp strip U1, which is convenient for the first comparison terminal of the open comparator U2 The comparison terminal obtains the output voltage of the constant voltage lamp strip U1, and the fourth resistor R2 limits the current collected on the first comparison terminal of the open comparator U2 to ensure that the open comparator U2 works normally.

Further, referring to FIG. 4 , the open circuit detection circuit 210 further includes a first capacitor C1, the second end of the fourth resistor R2 is connected to the first end of the first capacitor C1, and the first capacitor C1 The second end of the ground. In this embodiment, the first capacitor C1 is connected to the fourth resistor R2, specifically, the first capacitor C1 is connected to the first comparison terminal of the open comparator U2, and the first capacitor C1 Filtering the open-circuit collection voltage on the first comparison terminal of the open-circuit comparator U2 to ensure the accuracy of the open-circuit signal collected by the open-circuit comparator U2.

In one embodiment, please refer to FIG. 4 , the open circuit detection circuit 210 further includes a second capacitor C2, the second comparison terminal of the open circuit comparator U2 is connected to the first terminal of the second capacitor C2, so The second end of the second capacitor C2 is grounded. In this embodiment, the second capacitor C2 is connected to the second comparison terminal of the open comparator U2, and the second capacitor C2 filters the voltage output by the comparison power supply, so that the open comparator U2 The voltage on the second comparison terminal of the open circuit comparator U2 is stable, and a reliable comparison reference voltage is provided for the open circuit comparator U2, ensuring that the open circuit comparator U2 is accurate to the open circuit acquisition voltage on the first comparison terminal of the open circuit comparator U2 Compare accuracy.

In one embodiment, please refer to FIG. 5 , the short circuit detection circuit 220 further includes a fifth resistor R6, the second end of the first electronic switch tube Q1 is connected to the first end of the fifth resistor R6, The second end of the fifth resistor R6 is connected to the control end of the second electronic switch tube Q3. In this embodiment, the fifth resistor R6 is respectively connected to the first electronic switch tube Q1 and the second electronic switch tube Q3, specifically, the fifth resistor R6 is connected in series with the first electronic switch tube Between the second terminal of the tube Q1 and the control terminal of the second electronic switch tube Q3, the fifth resistor R6 limits the current on the control terminal of the second electronic switch tube Q3, so as to When the short-circuit voltage output by the constant voltage lamp strip U1 is collected, the voltage impact on the second electronic switch tube Q3 can be reduced to avoid damage to the second electronic switch tube Q3, effectively improving the The working stability of the second electronic switch tube Q3.

Further, referring to FIG. 5 , the short circuit detection circuit 220 further includes a sixth resistor R7, the second end of the sixth resistor R7R6 is connected to the first end of the sixth resistor R7, and the sixth resistor R7 The second end of the ground. In this embodiment, the sixth resistor R7 is respectively connected to the sixth resistor R7R6 and the second electronic switch Q3, specifically, the sixth resistor R7 is respectively connected to the second electronic switch Q3 The control terminal and the second terminal are connected, and the sixth resistor R7 quickly conducts the control terminal and the second terminal of the second electronic switch tube Q3, so as to improve the control when the second electronic switch tube Q3 is turned on. The conduction rate between the terminal and the second terminal.

In one embodiment, please refer to FIG. 5 , the short-circuit detection circuit 220 further includes a third capacitor C6, the first end of the second electronic switching transistor Q3 is connected to the first end of the third capacitor C6, The second terminal of the third capacitor C6 is grounded. In this embodiment, the third capacitor C6 is connected to the first end of the second electronic switch tube Q3, specifically, the third capacitor C6 is connected to the first end of the second electronic switch tube Q3 and The second end is connected, and the third capacitor C6 filters the voltage on the first end of the second electronic switch tube Q3, so that the electric signal on the first end of the second electronic switch tube Q3 is stable and accurate , so as to improve the detection accuracy of the short-circuit voltage of the constant-voltage lamp strip U1.

In one of the embodiments, the present application also provides a constant-voltage strip light dimmer, including the constant-voltage strip light dimming monitoring circuit described in any one of the above-mentioned embodiments. In this embodiment, the constant voltage light strip dimming monitoring circuit includes a light strip circuit and a fault detection circuit. The light strip circuit includes a constant voltage light strip, a first electronic switch tube and a first resistor. The first end of the constant voltage light strip is used to connect to a constant voltage source, the second end of the constant voltage light strip is connected to the first end of the first electronic switch tube, and the first end of the first electronic switch tube The second end is grounded through the first resistor, and the control end of the first electronic switch tube is used to connect with the modulation output end of the light strip dimming processor. The fault detection circuit includes an open circuit detection circuit and a short circuit detection circuit. The open circuit detection circuit includes an open circuit comparator, an open circuit diode and a second resistor. The second end of the constant voltage light strip is connected to the first comparison end of the open comparator, the second comparison end of the open comparator is used to connect to the comparison power supply, and the output end of the open comparator is connected to the The negative pole of the open-circuit diode is connected, the first end of the second resistor is used to connect to the reference power supply, the second end of the second resistor is connected to the positive pole of the open-circuit diode, and the second end of the second resistor It is connected with the open circuit detection terminal of the light strip dimming processor. The short circuit detection circuit includes a second electronic switch tube and a sixth resistor. The second terminal of the first electronic switch tube is connected to the control terminal of the second electronic switch tube, the first terminal of the sixth resistor is connected to the reference power supply, and the second terminal of the sixth resistor is connected to the The first end of the second electronic switch tube is connected, the first end of the second electronic switch tube is connected to the short-circuit detection end of the light strip dimming processor, and the second end of the second electronic switch tube grounded. The open circuit comparator collects the voltage of the first terminal of the first electronic switch tube, and the control terminal of the second electronic switch tube collects the voltage of the second terminal of the first electronic switch tube, so that the open circuit detection voltage is isolated from the short circuit detection voltage, which is convenient for open circuit detection Independent sampling of voltage and short-circuit detection voltages facilitates independent open-circuit and short-circuit detection.

The above-mentioned embodiments only express several implementation modes of the present invention, and the descriptions thereof are relatively specific and detailed, but should not be construed as limiting the patent scope of the invention. It should be pointed out that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent for the present invention should be based on the appended claims.

Claims (10)

1. A constant voltage lamp strip dimming monitoring method, comprising:

obtaining fault state parameters of the constant-voltage lamp strip;

performing fault detection processing on the fault state parameters and preset fault parameters to obtain a fault detection difference component;

and sending a dimming signal to a lamp strip dimming system according to the obstacle detection difference component so as to adjust the output state of the constant-voltage lamp strip.

2. The constant voltage lamp strip dimming monitoring method as claimed in claim 1, wherein the obtaining the fault state parameter of the constant voltage lamp strip comprises:

and obtaining the open-circuit fault parameters of the constant-voltage lamp strip.

3. The constant voltage lamp strip dimming monitoring method according to claim 2, wherein the performing the fault detection processing on the fault state parameter and the preset fault parameter to obtain the fault detection differential component comprises:

And performing obstacle-opening comparison on the open-circuit fault parameters and preset open-circuit state parameters to obtain an open-circuit fault detection difference component.

4. The constant voltage lamp strip dimming monitoring method as claimed in claim 3, wherein the transmitting a dimming signal to a lamp strip dimming system according to the obstacle detection difference amount to adjust the output state of the constant voltage lamp strip comprises:

detecting whether the open circuit fault detection difference amount is matched with a preset open circuit difference amount or not;

and when the open-circuit fault detection difference quantity is matched with the preset open-circuit difference quantity, sending an open-circuit dimming signal to the lamp strip dimming system so as to close an output electronic switch tube of the constant-voltage lamp strip.

5. The constant voltage lamp strip dimming monitoring method as claimed in claim 1, wherein the obtaining the fault state parameter of the constant voltage lamp strip comprises:

and obtaining the short circuit fault parameters of the constant voltage lamp strip.

6. The constant voltage lamp strip dimming monitoring method according to claim 5, wherein the performing the fault detection processing on the fault state parameter and the preset fault parameter to obtain the fault detection differential component comprises:

and performing short-circuit fault comparison on the short-circuit fault parameters and preset short-circuit state parameters to obtain short-circuit fault detection difference quantity.

7. The constant voltage lamp strip dimming monitoring method as claimed in claim 6, wherein the transmitting a dimming signal to a lamp strip dimming system according to the obstacle detection difference amount to adjust the output state of the constant voltage lamp strip comprises:

detecting whether the short-circuit fault detection difference component is matched with a preset short-circuit difference component or not;

and when the short circuit fault detection difference quantity is not matched with the preset short circuit difference quantity, sending a passage dimming signal to the lamp strip dimming system so as to enable an output electronic switch tube of the constant-voltage lamp strip to be started.

8. A constant voltage lamp strip monitoring device that adjusts luminance, characterized in that includes:

the lamp strip fault collector is used for acquiring fault state parameters of the constant-voltage lamp strip;

the constant-voltage dimming main board is used for performing barrier detection processing on the fault state parameter and a preset fault parameter to obtain a barrier detection difference component; and sending a dimming signal to a lamp strip dimming system according to the obstacle detection difference component so as to adjust the output state of the constant-voltage lamp strip.

9. A computer device comprising a memory and a processor, the memory storing a computer program, characterized in that the processor implements the steps of the method of any of claims 1 to 7 when the computer program is executed.

10. A computer readable storage medium, on which a computer program is stored, characterized in that the computer program, when being executed by a processor, implements the steps of the method according to any one of claims 1 to 7.

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