A master-slave control system and its indication driving circuit

Abstract

An indication driving circuit and a master-slave control system applied to a master-slave control system. The indication driving circuit includes: a master control component and at least one slave control unit. Each slave control unit includes a communication component, a slave control component, a power conversion component, and an indication component; the master control component is used to output a communication signal and a first power signal; the communication component is used to transmit the communication signal; the slave control component receives the communication signal and operates according to the communication signal; the power conversion component is used to convert the first power signal to obtain a second power signal; the indication component displays the working state of the slave control component according to the second power signal; the working states of each slave control component can be respectively displayed through the indication component to ensure the parallel control efficiency and control accuracy for multiple slave control components, and the indication component directly draws power from the master control component through a bus, improving the efficiency and accuracy of power utilization and simplifying the internal circuit structure and wiring structure of the indication driving circuit.

Description

Technical Field

[0001] This application belongs to the technical field of electronic circuits, and particularly relates to an indication driving circuit and a master-slave control system applied to a master-slave control system. Background Art

[0002] With the rapid development of current industrial technologies, in order to meet the circuit function requirements in different fields, technicians need to perform multi-functional designs on circuit control systems to achieve more complete and comprehensive circuit functions. Therefore, the circuit functions implemented by circuit control systems are gradually becoming more complex and modular. In a circuit control system, multiple sub-circuit modules are adopted, and a master-slave control method is used. Different sub-circuit modules can be compatible and communicate with each other to combine multiple sub-circuit modules to achieve comprehensive circuit functions. Therefore, integrated control steps are taken for the circuit control system so that the circuit control system can meet the actual circuit function requirements in various different technical fields, which has an important promoting effect on the practical value of the circuit control system.

[0003] Since a circuit control system includes multiple sub-circuit modules, each sub-circuit module implements a specific circuit function, and each sub-circuit module is in a corresponding operating state under integrated control, the circuit control system has high controllability and flexibility. However, during the process of integrated control of multiple sub-circuit modules, users need to obtain the operating state or fault state of each sub-circuit module in real time to ensure the safety performance of the circuit control system. However, in traditional technologies, in order to obtain the operating state of each sub-circuit module, electrical energy needs to be transmitted separately for each sub-circuit module to obtain the operating performance of the circuit module. This not only causes large electrical energy losses, increases the state display cost of the circuit control system, but also makes the wiring structure between multiple sub-circuit modules more complex, bringing great inconvenience to the circuit control process of multiple sub-circuit modules and reducing the safety and reliability of the circuit control system. Summary of the Invention

[0004] In view of this, the embodiments of this application provide an indication driving circuit and a master-slave control system applied to a master-slave control system, aiming to solve the problems that when the traditional technical solution displays the states of multiple sub-circuit modules of a power control system, it will generate large electrical energy losses, increase the installation and maintenance costs of the circuit, and it is difficult to ensure the stability of multiple sub-circuit modules.

[0005] The first aspect of the embodiments of this application provides an indication driving circuit applied to a master-slave control system, including:

[0006] A main control component, configured to output a communication signal and a first power signal; and

[0007] At least one slave control unit is connected to the master control component through a bus. The slave control unit is configured to operate based on the communication signal and the first power signal and display its operating state;

[0008] Wherein, each of the slave control units includes:

[0009] A communication component, connected to the master control component, for transmitting the communication signal;

[0010] A slave control component, connected to the communication component, for receiving the communication signal and operating based on the communication signal;

[0011] A power conversion component, connected to the master control component and the slave control component, for converting the first power signal to obtain a second power signal; and

[0012] An indication component, connected to the power conversion component, for displaying the operating state of the slave control component based on the second power signal.

[0013] In one embodiment, each of the power conversion components includes:

[0014] An energy storage component, connected to the master control component, for charging based on the first power signal and generating a third power signal; and

[0015] A buck component, connected to the slave control component, the energy storage component, and the indication component, for adjusting the voltage of the third power signal according to the pulse width modulation signal output by the slave control component to generate the second power signal.

[0016] In one embodiment, each of the power conversion components further includes:

[0017] An anti-backflow component, connected to the energy storage component and the master control component, for preventing the third power signal from flowing back to the master control component.

[0018] In one embodiment, the buck component includes:

[0019] A state detector, a first inductor, a first diode, a first switching tube, and a first resistor;

[0020] The state detector is connected to the slave control component, the state detector is connected to the control end of the first switching tube. The first conduction end of the first switching tube and the anode of the first diode are commonly connected to form the negative terminal of the buck component. The second conduction end of the first switching tube is connected to the first end of the first resistor, and the second end of the first resistor is grounded;

[0021] The cathode of the first diode and the first end of the first inductor are commonly connected to the energy storage component;

[0022] The second end of the first inductor is the positive extreme of the step-down component;

[0023] The positive extreme and the negative extreme of the step-down component are connected to the indication component;

[0024] The state detector is configured to detect the working state of the slave control component according to the pulse width modulation signal and generate a state detection signal.

[0025] In one embodiment, each of the indication components includes at least one light-emitting diode.

[0026] In one embodiment, the step-down component includes:

[0027] A second inductor, a second diode, and a second switching tube;

[0028] The control end of the second switching tube is connected to the slave control component. The first conducting end of the second switching tube and the anode of the second diode are commonly connected to form the negative extreme of the step-down component. The second conducting end of the second switching tube is grounded;

[0029] The cathode of the second switching tube and the first end of the second inductor are commonly connected to the energy storage component;

[0030] The second end of the second inductor is the positive extreme of the step-down component;

[0031] The positive extreme and the negative extreme of the step-down component are connected to the indication component.

[0032] In one embodiment, each of the slave control components includes:

[0033] A voltage regulation component, connected to the energy storage component and the communication component. The voltage regulation component is configured to perform voltage regulation on the third power signal to obtain a fourth power signal; and

[0034] A function processing component, connected to the communication component, the voltage regulation component, and the step-down component. The function processing component is configured to operate according to the fourth power signal and the communication signal and generate the pulse width modulation signal.

[0035] In one embodiment, the function processing component includes a smoke alarm.

[0036] In one embodiment, the anti-backflow component includes: a third diode;

[0037] The anode of the third diode is connected to the main control component, and the cathode of the third diode is used to connect to the energy storage component.

[0038] A second aspect of the embodiments of the present application provides a master-slave control system, including:

[0039] The indication driving circuit as described above; and

[0040] A battery component, connected to the indication driving circuit, and the battery component is used to supply power to the indication driving circuit.

[0041] The above-mentioned indication driving circuit applied to the master-slave control system communicates with multiple slave control components through the main control component. Through the main control component, the states of multiple slave control units can be controlled in parallel, so that each slave control group can realize corresponding circuit functions, ensuring the control efficiency and control stability of the master-slave control system; and in this embodiment, the power conversion component can directly obtain power from the main control component through the bus to supply power to the indication component, and the indication component can display the working state of the corresponding slave control component in real time, ensuring the control safety and flexibility of each slave control component, and bringing a better user experience to the user; therefore, the main control component in this embodiment can output multifunctional signals, that is, it can output communication information to each slave control component to meet the circuit control function requirements of users, and directly supply power to each indication component, so that the indication component can realize the normal state indication function, improving the utilization efficiency and transmission accuracy of electric energy. According to the working state of the corresponding slave control component displayed by the indication component, it is beneficial to realize the dynamic and flexible adjustment function of multiple slave control components, simplify the circuit structure of the master-slave control system, and the indication driving circuit has higher energy utilization efficiency and higher practical value. Description of the Drawings

[0042] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0043] Figure 1 It is a schematic structural diagram of an indication driving circuit applied to a master-slave control system provided by an embodiment of the present application;

[0044] Figure 2 It is a schematic structural diagram of a power conversion component provided by an embodiment of the present application;

[0045] Figure 3 It is another schematic structural diagram of a power conversion component provided by an embodiment of the present application;

[0046] Figure 4 Schematic diagram of the circuit structure of the voltage reduction component provided by an embodiment of the present application;

[0047] Figure 5 Schematic diagram of the circuit structure of the indication component, voltage reduction component, and energy storage component provided by an embodiment of the present application;

[0048] Figure 6 Variation relationship between the current of the second inductor and the voltage across both ends of the second inductor provided by an embodiment of the present application;

[0049] Figure 7 Schematic diagram of the structure of the slave control component provided by an embodiment of the present application;

[0050] Figure 8 Schematic diagram of the circuit module structure for comparative reference provided by an embodiment of the present application;

[0051] Figure 9 Schematic diagram of the structure of the bus provided by an embodiment of the present application;

[0052] Figure 10 Schematic diagram of the structure of the master-slave control system provided by an embodiment of the present application. Detailed implementation manners

[0053] In order to make the objectives, technical solutions, and advantages of the present application clearer, the present application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0054] Please refer to Figure 1 , schematic diagram of the indication driving circuit 10 applied to the master-slave control system provided by an embodiment of the present application. The indication driving circuit 10 can display the status of each slave control unit in real time, so as to achieve safe and efficient control functions for multiple slave control units, improving the flexibility and compatibility of the master-slave control process; during the process of indicating the status of each slave control unit, the reuse of electric energy is realized, improving the efficiency of electric energy utilization and simplifying the internal circuit structure of the indication driving circuit 10; for the convenience of description, only the parts related to this embodiment are shown and are described in detail as follows:

[0055] The above-mentioned indication driving circuit 10 includes: a main control component 101 and at least one slave control unit ( Figure 1 represented by 131,..., 13N, where N is an integer greater than 0).

[0056] Among them, the main control component 101 is used to output a communication signal and a first power signal.

[0057] Optionally, the main control component 101 generates and outputs a communication signal and a first power signal according to the key signal, where the key signal contains the user's key information. The main control component 101 has high controllability and flexibility, realizes the master-slave control function according to the user's key information, and meets the actual circuit function requirements of the user; therefore, the indication drive circuit 10 can implement corresponding circuit functions according to the user's circuit control instructions.

[0058] The main control component 101 has the functions of centralized control and signal output. The communication signal output by the main control component 101 includes communication information. According to the communication information, electronic components can be driven to implement corresponding circuit functions. The first power signal can provide stable electric energy to power on the electronic components and ensure the working safety and efficiency of the electronic components; in this embodiment, the main control component 101 realizes an all-round circuit control function, greatly improving the control efficiency and control accuracy of the master-slave control system.

[0059] At least one slave control unit is connected to the main control component 101 through a bus. The slave control unit is used to work according to the communication signal and the first power signal and display the working state.

[0060] Among them, under the control of the main control component 101, the slave control unit can execute corresponding circuit functions. After the slave control unit is successfully powered on, it analyzes the communication signal to obtain communication information and executes corresponding operations according to the actual circuit function requirements of the user. The slave control unit has high circuit control efficiency; and the slave control unit can display its own working state to improve the master-slave control efficiency; therefore, each slave control unit in this embodiment realizes signal communication with the main control component 101 through a bus, greatly ensuring the internal control efficiency and control stability of the master-slave control system and having a wider application range.

[0061] Each slave control unit includes: a communication component, a slave control component, a power conversion component, and an indication component

[0062] The communication component is connected to the main control component 101, and the communication component is used to transmit the communication signal.

[0063] Exemplarily, the communication component is a wireless communication component or a wired communication component. Through the communication component, wired or wireless communication functions can be realized. The communication signal can realize compatible transmission functions in various different communication environments, and ensure the transmission efficiency and transmission accuracy of the communication signal, improving the accuracy and safety of circuit control; when the main control component 101 outputs the first power signal, the communication component can retain the transmission integrity and anti-interference ability of the communication information and avoid signal distortion; the indication drive circuit 10 in this embodiment has a higher communication application range.

[0064] The slave control component is connected to the communication component, receives communication signals from the control component, and operates according to the communication signals.

[0065] When the communication signal cannot be received from the control component, it stops; when the control component is in a stopped state, the corresponding circuit functions cannot be achieved by the control component, and the master-slave control system is in a shutdown process.

[0066] Among them, the slave control component is various types of integrated circuits in the art. For example, if the slave control component is an alarm circuit, the communication signal can drive the slave control component to achieve the alarm function; for another example, if the slave control component is a motor control circuit, the communication signal can drive the motor control circuit to achieve the corresponding motor control function, realizing the flexible and efficient control function of the motor; the circuit functions achieved by the slave control component can fully meet the actual circuit function requirements of users.

[0067] When the communication component outputs the communication signal to the slave control component, the slave control component can parse the communication information and perform corresponding circuit actions to meet the actual needs of users; the circuit performance of the slave control component can be changed in real time through the communication signal, improving the control response accuracy and control response rate of the slave control component; therefore, under the centralized control of the master control component 101, one or more slave control components can respectively receive the communication signal and each achieve the corresponding circuit function. The individual control function is achieved through each slave control component, which not only improves the circuit control efficiency and accuracy of multiple slave control components, but also is conducive to combining multiple slave control components to achieve more complex circuit functions, meeting the actual circuit function requirements of various technical fields.

[0068] The power conversion component is connected to the master control component 101 and the slave control component, and the power conversion component is used to convert the first power signal to obtain the second power signal.

[0069] Among them, the power conversion component has the function of electric energy conversion. The power conversion component is connected to the master control component 101 through a bus. The voltage and / or current of the first power signal can be adjusted through the power conversion component. Furthermore, the second power signal output by the power conversion component has specific power supply performance, meeting the power consumption requirements of various electronic components; therefore, in this embodiment, the master control component 101 outputs a first power signal through the bus. After each power conversion component converts the first power signal respectively, it can be applied to the power supply power requirements of different electronic components. The master-slave control system has higher circuit control stability and better electric energy transmission performance.

[0070] Specifically, information interaction can be achieved between the power conversion component and the slave control component. The power conversion component can convert the first power signal according to the signal output by the slave control component. Then, there is a corresponding relationship between the second power signal output by the power conversion component and the slave control component. The power conversion component can obtain the operating information of the slave control component in real time to achieve flexible adjustment of electric energy, improve the signal transmission efficiency and control efficiency of the indication drive circuit 10, and the power conversion component can adaptively obtain the status change of the slave control component.

[0071] The indication component is connected to the power conversion component, and the indication component displays the working status of the slave control component according to the second power signal.

[0072] Among them, the indication component has a status display function. For example, the status of the slave control component is displayed through the optical signal or sound signal emitted by the indication component. The display result of the indication component can more truly reflect the control performance of the slave control component, realize a higher-precision and safer control function for the slave control component, and meet the circuit control requirements of users; Exemplarily, the status of the slave control component includes working and stopping. When the slave control component is in the working state, the slave control component realizes corresponding circuit functions according to the communication signal; when the slave control component is in the stopping state, the slave control component does not execute circuit work; Therefore, in this embodiment, the indication component can accurately and real-time indicate the operating characteristics of the slave control component, improving the control safety and flexibility of the slave control component.

[0073] The power conversion component can output the second power signal to the indication component, and the indication component is powered on according to the rated power, ensuring the power-on safety and efficiency of the indication component; Therefore, in this embodiment, after taking power in the main control component through the power conversion component and converting the electric energy according to the status of the slave control component, the power-on function of the indication component can be realized, improving the electric energy utilization rate and transmission efficiency of the first power signal, without separately setting a power supply for the indication component, simplifying the circuit design of the master-slave control system; Through the status display result of the indication component, the working status of the corresponding slave control component can be directly obtained. The indication component has a sensitive status display function. Users can intuitively obtain the control performance of the master-slave control system through the indication component, improving the control efficiency of the master-slave control system and meeting the circuit control requirements of users.

[0074] In Figure 1In the structural schematic diagram showing the indication driving circuit 10, the main control component 101 realizes the centralized control function through the bus, improving the efficiency of parallel control and the control response speed; on the one hand, information interaction is carried out between the main control component 101 and each slave control component, and the main control component 101 can parallelly control the operating states of multiple slave control components, ensuring the control compatibility and expandable performance of the master-slave control system; on the other hand, each indication component can obtain and display the working state of the corresponding slave control component, facilitating the dynamic and safe control of multiple slave control components, and improving the integrated control efficiency and application scope of the master-slave control system; therefore, this embodiment can directly convert the electric energy output by the main control component to supply power to multiple indication components, not only realizing the state monitoring function of the master-slave control performance, but also improving the utilization rate of electric energy. The indication component directly uses the electric energy output by the main control component 101 through the bus for state display without relying on an additional power supply, simplifying the internal circuit structure and wiring structure of the indication driving circuit 10, reducing the power supply cost of the indication component and the design and application cost of the master-slave control system, improving the utilization rate of the electric energy output by the main control component, enabling real-time state monitoring of multiple slave control components, and having higher practical value; effectively solving the problems in the traditional technology that when the control performance of the master-slave control system is displayed, there is a large power loss, the circuit design and application cost are high, the control complexity of the master-slave control system is increased, it is difficult to ensure the control safety of the master-slave control system, and it cannot be widely applied.

[0075] As an alternative embodiment, Figure 2 The structural schematic diagram of the power conversion component provided in this embodiment is shown. Please refer to Figure 2 , each power conversion component includes: an energy storage component and a step-down component; wherein, the energy storage component is connected to the main control component 101, and the energy storage component is used to charge according to the first power signal and generate a third power signal.

[0076] Among them, the energy storage component has the function of electric energy storage. By charging or discharging through the energy storage component, the amplitude of the electric energy can be adjusted. During the charging or discharging process of the energy storage component, a third power signal with a specific amplitude can be generated to realize the power supply function of electronic components; when the energy storage component is connected to the first power signal, the energy storage component can perform the charging operation, greatly ensuring the adjustment efficiency and adjustment accuracy of the electric energy, and having higher practical value; therefore, this embodiment adjusts the electric energy in real time through the charging and discharging operations of the energy storage component, and the third power signal output by the energy storage component can supply power to electronic components safely and efficiently, having higher practical value.

[0077] The step-down component is connected to the slave control component, the energy storage component and the indication component. The step-down component is used to adjust the voltage of the third power signal according to the pulse width modulation signal output by the slave control component to generate a second power signal.

[0078] Information interaction occurs between the step-down component and the slave control component. When the slave control component is working or stopped, the pulse width modulation signal output by the slave control component contains the status information of the slave control component. When the step-down component receives the pulse width modulation signal, the step-down component can obtain in real time whether the slave control component is in the working state or the stopped state. When the slave control component is in the working state, the slave control component realizes corresponding circuit functions according to the communication signal, and the step-down component adjusts the voltage of the third power signal according to the pulse width modulation signal and drives the indication component to realize the status display function, improving the status display accuracy and efficiency of the indication component for the slave control component; Exemplarily, the step-down component adjusts the voltage of the third power signal according to the level state of the pulse width modulation signal output by the slave control component. When the slave control component is in the working state, the pulse width modulation signal has a specific level state, thereby driving the step-down component to realize the step-down function and improving the credibility of the status display result of the indication component. The master-slave control system has higher control security and efficiency.

[0079] As an alternative implementation Figure 3 shows another structural schematic diagram of the power conversion component provided in this embodiment. Compared with Figure 2 the structural schematic diagram of the power conversion component in [reference], in this embodiment, each power conversion component further includes: an anti-backflow component, where the anti-backflow component is connected to the energy storage component and the main control component, and the anti-backflow component is used to prevent the third power signal from flowing back to the main control component.

[0080] During the charging or discharging process of the energy storage component, the energy storage component stores electrical energy with a specific amplitude, and the third power signal has a certain amplitude; the anti-backflow component has the function of preventing electrical energy from flowing back, avoiding the problem that the third power signal flows back to the main control component and causing power loss to the main control component; Therefore, in this embodiment, the anti-backflow component can ensure the power conversion efficiency of the step-down component, improve the utilization rate of electrical energy and the rate of electrical energy transmission, and the internal of the indication driving circuit 10 has higher electrical energy security and efficiency.

[0081] As an alternative implementation Figure 4 shows the circuit structural schematic diagram of the step-down component provided in this embodiment. Please refer to Figure 4, the voltage - reducing component includes: a state detector, a first inductor L1, a first diode D1, a first switching transistor M1, and a first resistor R1. The state detector is connected to the slave control component. The state detector is connected to the control terminal of the first switching transistor M1. The first conducting terminal of the first switching transistor M1 and the anode of the first diode D1 are commonly connected to form the negative terminal of the voltage - reducing component. The second conducting terminal of the first switching transistor M1 is connected to the first end of the first resistor R1, and the second end of the first resistor R1 is grounded to GND.

[0082] The cathode of the first diode D1 and the first end of the first inductor L1 are commonly connected to the energy - storage component. Then, the energy - storage component can output the third power signal to the voltage - reducing component, ensuring the regulation efficiency and regulation accuracy of the amplitude of the electric energy.

[0083] The second end of the first inductor L1 is the positive terminal of the voltage - reducing component.

[0084] The positive terminal and the negative terminal of the voltage - reducing component are connected to the indication component;

[0085] The state detector is used to detect the working state of the slave control component according to the pulse - width modulation signal and generate a state - detection signal.

[0086] Among them, the state detector can judge in real - time whether the slave control component is in the working state or the stop state; when the state detector receives the pulse - width modulation signal, after analyzing the pulse - width modulation signal and determining that the slave control component is in the working state, it controls the first switching transistor M1 to conduct according to the state - detection signal output by the state detector. Then, after the voltage of the third power signal is adjusted in real - time by the voltage - reducing component, it drives the indication component to realize a stable state - display function, improving the state - display efficiency and power - supply safety of the indication component, and ensuring the control safety and control stability of the master - slave control system; Therefore, in this embodiment, each electronic component inside the voltage - reducing component is used to convert electric energy, improving the electric - energy conversion efficiency and accuracy. The indication component can display the working state of the slave control component more efficiently, ensuring the control safety of the master - slave control system.

[0087] Optionally, the state detector can be implemented by a signal - detection chip or a circuit structure in traditional technologies. For example, the state detector includes: an SG3525 detection chip or an SG3524 detection chip. The state detector has a relatively compatible circuit structure, can obtain the working state of the slave control component in real - time according to the pulse - width modulation signal, improving the detection accuracy and detection efficiency of the control performance of the master - slave control system, and the indication component has a higher state - display efficiency.

[0088] Exemplarily, the first switching transistor M1 is a MOS transistor or a bipolar transistor. For example, the first switching transistor M1 is an N-type MOS transistor. The gate of the N-type MOS transistor is the control terminal of the first switching transistor M1, the drain of the N-type MOS transistor is the first conduction terminal of the first switching transistor M1, and the source of the N-type MOS transistor is the second conduction terminal of the first switching transistor M1. Another example is that the first switching transistor M1 is an NPN bipolar transistor. Among them, the base of the NPN bipolar transistor is the control terminal of the first switching transistor M1, the collector of the NPN bipolar transistor is the first conduction terminal of the first switching transistor M1, and the emitter of the NPN bipolar transistor is the second conduction terminal of the first switching transistor M1. When the state detector outputs a pulse width modulation signal to the base of the NPN bipolar transistor, it controls the NPN bipolar transistor to conduct, so that the indicating component is connected to the second power signal, achieving the function of state display, and improving the power supply safety and power supply efficiency of the indicating component.

[0089] As an implementation manner, Figure 5 shows the circuit structure schematic diagram of the indicating component provided in this embodiment. Please refer to Figure 5 , each indicating component includes at least one light-emitting diode ( Figure 5 represented by DS1…DSM, where M is an integer greater than 0); among them, the light-emitting diode has a light-emitting function. Therefore, the light signal emitted by the light-emitting diode can display the working state of the slave control component in real time, greatly ensuring the display efficiency and display accuracy of the indicating component for the working state of the slave control component. Users can more intuitively and efficiently obtain the working state of the slave control component through the light-emitting states of multiple light-emitting diodes, ensuring the control flexibility and simplicity of the master-slave control system.

[0090] Exemplarily, please refer to Figure 5 , the indicating component includes a plurality of cascaded light-emitting diodes. The anode of the first light-emitting diode is connected to the voltage-reducing component, the cathode of the previous light-emitting diode is connected to the anode of the next light-emitting diode, and the cathode of the last light-emitting diode is connected to the voltage-reducing component. Then, the second power signal can be output to the plurality of light-emitting diodes through the voltage-reducing component. Combining the light-emitting effects of the plurality of light-emitting diodes can more real-time display the actual operating characteristics of the slave control component, simplifying the state monitoring steps for the slave control component.

[0091] As an alternative implementation manner, Figure 5 shows another structural schematic diagram of the voltage-reducing component provided in this embodiment. Please refer to Figure 5 , the voltage-reducing component includes: a second inductor L2, a second diode D2, and a second switching transistor M2.

[0092] The control terminal of the second switching transistor M2 is connected to the slave control component. The first conducting terminal of the second switching transistor M2 and the anode of the second diode D2 are commonly connected to form the negative terminal of the buck component. The second conducting terminal of the second switching transistor M2 is grounded to GND.

[0093] The cathode of the second switching transistor M2 and the first end of the second inductor L2 are commonly connected to the energy storage component; through the energy storage component, the third power signal can be output to the buck component.

[0094] The second end of the second inductor L2 is the positive terminal of the buck component.

[0095] The positive terminal and the negative terminal of the buck component are connected to the indication component.

[0096] Optionally, the second switching transistor M2 is a MOS transistor or a bipolar transistor.

[0097] The voltage of the third power signal can be adjusted in real time through the buck component to change the status display function of the indication component; when the pulse width modulation signal is output from the slave control component to the control terminal of the second switching transistor M2, the on or off state of the second switching transistor M2 can be changed through the pulse width modulation signal, so that after the electronic components in the buck component adaptively adjust the amplitude of the third power signal, and after detecting and analyzing the status of the slave control component, the indication component can display the working status of the slave control component in real time; therefore, the buck component in this embodiment can directly access the pulse width modulation signal output from the slave control component by using the second switching transistor M2, obtain the actual operation characteristics of the slave control component more quickly, and simplify the status detection steps of the slave control component.

[0098] As an optional implementation manner, please refer to Figure 5 , the energy storage component includes an energy storage capacitor CS. The first end of the energy storage capacitor CS is used to connect to the main control component 101 and the buck component, and the second end of the energy storage capacitor CS is grounded to GND; therefore, in this embodiment, the energy storage capacitor CS is used to realize the charging or discharging control of electric energy.

[0099] As an optional implementation manner, please refer to Figure 5 , the anti-backflow component includes: a third diode D3. The anode of the third diode D3 is connected to the main control component 101, and the cathode of the third diode D3 is used to connect to the energy storage component. By using the unidirectional conduction performance of the third diode D3, the anti-backflow function can be realized for the third power signal output by the energy storage component, which greatly guarantees the electrical energy safety and stability of the main control component 101.

[0100] To better illustrate the detection process of the power conversion component for the pulse width modulation signal and the display principle of the indication component for the working status of the slave control component in this embodiment, the following is combined with Figure 5, the state recognition process of the power conversion component for the slave control component will be described through a specific application scenario as follows:

[0101] It should be noted that since in Figure 5 , the working state of the slave control component is indicated by the lighting state of the light-emitting diode. Therefore, during the process of adjusting the lighting state of the light-emitting diode, the light source signal emitted by the light-emitting diode will produce an afterglow effect on the human eye. The "afterglow effect" refers to: when the human eye observes the light source, the light signal emitted by the light-emitting diode is transmitted to the human brain nerve, which takes a short period of time. After the action of the light signal ends, the visual image does not disappear immediately. Then, there will be such a residual vision in the human brain nerve; using the afterglow effect, Figure 5 the light-emitting diode in

[0102] can be in a discontinuous conduction mode. Figure 6 When the energy storage capacitor CS outputs the third power signal, the relationship between the current flowing through the second inductor L2 and the voltage across the second inductor L2 is as Figure 6 shown. Among them, in

[0103] , the conduction time of the second switching tube M2 is Ton, the turn-off time of the second switching tube M2 is Toff, Twait is the waiting time when the second switching tube M2 remains off after the discharge of the second inductor L2 ends, and the turn-off time satisfies Toff = Tfw + Twait, that is, Toff consists of two parts of time: Tfw is the time when the second inductor L2 discharges through the second diode D2, and the second diode D2 has a freewheeling function; using the afterglow effect, when the energy stored in the second inductor L2 disappears, there is a short extinguishing time slot of the light-emitting diode that is not easily detected by the human eye. Since the reaction time of the human eye is usually in milliseconds, the human eye intuitively sees that the light-emitting diode is still in the constant-on state. Therefore, there is no need for a dedicated detection device or feedback circuit, etc. to obtain the lighting state of the indicating component. When the pulse width modulation signal has different duty cycles, the conduction time and turn-off time of the second switching tube M2 are not exactly the same, thus ensuring the state display function of the indicating component.

[0104] HVcc = Vbus - VD2 (1)

[0105] (HVcc - VD3 - VN2) * Ton = LH * Ipk (2)

[0106] (VD3 + VD6) * Tfw = LH * Ipk (3)

[0107] In the above formulas (1) to (3), Vbus is the voltage of the first power signal output by the main control component 101, VD2 is the conduction voltage drop of the third diode D3; VD3 represents the voltage drop when the light-emitting diode in the indication component emits light; VN2 represents the drain-source voltage when the second switching transistor M2 is conducting; LH represents the inductance value of the second inductor L2; Ipk represents the peak current flowing through the second inductor L2; VD6 represents the voltage drop when the second diode D2 is conducting. For the convenience of calculation, the values of each parameter are set as follows: Vbus = 24V, VD2 = 0.7V, then HVcc = 23.3V; VD3 = 2.5V; VN2 = 0.5V; VD6 = 0.7V; LH = 10mH.

[0108] From the above formulas (2) and (3), the following relationship can be obtained: Ton / Tfw = (VD3 + VD6) / (HVcc - VD3 - VN2). Substituting the set values, we can get

[0109] Ton / (Ton + Tfw) = 3.2 / 23.5 (4)

[0110] Set the average current when the light-emitting diode in the indication component emits light as ID3, then:

[0111] Ipk = 2 * ID3 * (Ton + Tfw + Twait) / (Ton + Tfw) (5)

[0112] The time when the current is actually consumed on the indication component within one cycle is Ton. Therefore, the energy value consumed on the indication component is 24 * (Ipk / 2) * Ton / (Ton + Tfw + Twait) = 24 * ID3 * Ton / (Ton + Tfw). The energy value required for the light-emitting diode to emit light is 2.5 * ID3. Thus, the calculated energy utilization efficiency is (2.5 * ID3) / [24 * ID3 * Ton / (Ton + Tfw)] = (2.5 / 24) * (Ton + Tfw) / Ton = 76.5%. It can be seen that the electronic components inside the power conversion component in this application scenario have a high power utilization rate for the electrical energy output by the main control component, greatly reducing energy waste and lowering the indication and control costs for the slave control component.

[0113] Set ID3 = 2 mA, L2 = 10 mH, Twait = 700 μs. According to formulas (1) to (5), Ton ≈ 14.72 μs and Tfw ≈ 93.38 μs can be calculated. Since the second switching transistor M2 is driven to conduct by a high level, the high-level time of the pulse-width control signal is 14.7 μs, and the low-level time is: Tfw + Twait = 793.4 μs. Thus, the light-emitting function of the light-emitting diode can be achieved without a complex signal detection process. In addition, the average current extracted on the main control component 101 can be calculated as: (Ipk / 2) * Ton / (Ton + Tfw + Twait) = ID3 * Ton / (Ton + Tfw) = 2 * 14.7 / (14.7 + 93.4) mA = 272 μA. Therefore, the power conversion component in this application scenario only needs to extract a very small amount of electrical energy from the main control component, which can greatly reduce the power consumption during the power conversion process, reduce the power supply burden on the main control component 101, and lower the power output cost of the main control component 101.

[0114] As an alternative implementation Figure 7 shows the structural schematic diagram of the slave control component provided in this embodiment. Please refer to Figure 7 , and each slave control component includes: a voltage stabilizing component and a function processing component; wherein, the voltage stabilizing component is connected to the energy storage component and the communication component, and the voltage stabilizing component is used to perform voltage stabilization processing on the third power signal to obtain a fourth power signal.

[0115] Exemplarily, when the energy storage component outputs the third power signal, the voltage stabilizing component can lower or raise the voltage of the third power signal so that the fourth power signal has a specific voltage to meet the power supply requirements of electronic components. Therefore, the voltage stabilizing component in this embodiment has a high power conversion efficiency and can ensure the power stability of the fourth power signal.

[0116] The function processing component is connected to the communication component, the voltage stabilizing component and the step-down component, and the function processing component is used to work according to the fourth power signal and the communication signal and generate a pulse-width modulation signal.

[0117] When the voltage stabilizing component outputs the fourth power signal to the functional processing component, the functional processing component can be powered on through the fourth power signal, so that the functional processing component is in a normal working state, improving the power supply safety and stability of the functional processing component; when the functional processing component receives and analyzes the communication information contained in the communication signal, the functional processing component executes circuit work according to the communication signal to meet the actual circuit function requirements of the user, and the functional processing component also generates a pulse width modulation signal, where the pulse width modulation signal contains the operation characteristic information of the functional processing component. Through the pulse width modulation signal, the voltage conversion performance of the buck component can be adjusted in real time, and then the indicator component can display the working state of the functional processing component in real time, further ensuring the state display accuracy and efficiency of the functional processing component.

[0118] Therefore, in this embodiment, the voltage stabilizing component performs independent power supply control on the functional processing component, ensuring the power supply safety and efficiency of the functional processing component. At the same time, the electric energy accessed by the indicator component can be directly obtained in the main control component 101, and then converted and adjusted to ensure the electric energy stability of the indicator component; therefore, the indicator component in this embodiment does not need to draw power from the functional processing component, avoiding the power loss caused by the voltage stabilizing component needing to supply power to the functional processing component and the indicator component synchronously.

[0119] For better illustration Figure 7 the power conversion advantage of the control component in Figure 7 the power conversion advantage of the control component in Figure 8 Fig. shows the circuit module structure of the comparative reference provided in this embodiment. It should be noted that Figure 8 the circuit module structure in Figure 8 is only for the comparative test and does not mean Figure 8 As the prior art of the embodiment of the present application, in Figure 8 the indicator component directly draws power from the functional processing component. After the voltage stabilizing component processes the first power signal, it supplies power to the functional processing component; it is set that the voltage output by the main control component is 24V, the rated voltage of the functional processing component is 5V, the voltage drop of the indicator component is 2.5V, and the current flowing through the indicator component is IH1. To enable the indicator component to access the rated electric energy, the energy value consumed on the main control component is 24 * IH1, and the electric energy actually used for the indicator component is 2.5 * ID1. Thus, the energy use efficiency of the indicator component is calculated as 2.5 * IH1 / 24 * IH1 = 10.4%, and 89.6% of the energy is consumed in the form of heat on the voltage stabilizing component, resulting in a great waste of electric energy. If the current required for the indicator component to display the state is between 2mA and 20mA, and this current needs to be directly drawn from the main control component, it causes a great power supply burden on the main control component, reducing the stability and safety of the master-slave control system.

[0120] According to the above comparative tests, in the embodiments of the present application, the power conversion component directly takes power from the electric energy output by the main control component and realizes the direct power supply function of the indication component, greatly ensuring the power supply efficiency and power supply stability of the indication component, reducing power loss, and making full use of the electric energy output by the main control component to realize the power supply function of the indication component, further reducing the power supply cost and design cost of the indication driving circuit 10.

[0121] As an alternative embodiment, the function processing component includes a smoke alarm; the smoke alarm can sense the smoke state of the external environment and send out corresponding alarm information, ensuring the safety of the external environment. Therefore, in this embodiment, the indication driving circuit is applied to the smoke alarm function. When the smoke alarm detects the smoke state of the external environment according to the communication signal, the smoke detection result of the smoke alarm can be displayed through the indication component; for example, when the smoke alarm detects that there is a smoke risk in the external environment, the indication component sends out a first indication signal, and when the smoke alarm detects that there is no smoke risk in the external environment, the indication component sends out a second indication signal; therefore, in this embodiment, the working state of the smoke alarm can be accurately displayed through the indication component, improving the operation efficiency, smoke detection safety and accuracy of the smoke alarm; and the indication driving circuit 10 can save electric energy during the process of the indication component displaying the smoke state, and realizes the real-time and stable detection function of the smoke state of the external environment in combination with multiple smoke alarms.

[0122] As an alternative embodiment, Figure 9 The structural schematic diagram of the bus provided in this embodiment is shown. The main control component 101 is connected to at least one communication component, at least one communication component and at least one power conversion component through the bus. The bus is used to transmit communication signals and the first power signal; in this embodiment, the signal is output to at least one slave control unit through the bus, ensuring the transmission efficiency and transmission accuracy of the communication signal and the first power signal, preventing signal transmission loss, and the master-slave control system has higher control response accuracy and efficiency.

[0123] For example, the bus includes a positive line Lp and a negative line Ln. Furthermore, in this embodiment, the positive line Lp and the negative line Ln are combined to quickly conduct signals, ensuring the internal signal transmission efficiency and transmission accuracy of the indication driving circuit 10. Multiple slave control units are respectively connected to the communication signal to realize corresponding circuit functions. The indication components in each slave control unit have higher power supply safety and reliability. The indication components can access electric energy and maintain a safe state display function. The indication driving circuit 10 has higher scalability and practical value.

[0124] In summary, the indication driving circuit 10 in the embodiments of the present application has higher power utilization efficiency, simplifies the internal circuit structure of the indication driving circuit 10. In each slave control unit, the working state of the slave control component is displayed in real time through the indication component, achieving efficient and stable control performance of the master-slave control system. Thus, after the electric energy output by the master control component 101 is converted, it supplies power to the light-emitting component, greatly reducing the electric energy consumption on the bus, improving the energy utilization efficiency, reducing the power supply burden of the master control component 101, and enabling the efficient power supply function for any number of light-emitting components, with strong compatibility and effectively reducing the power supply cost of the slave control component.

[0125] Figure 10 The structural schematic diagram of the master-slave control system 100 provided in this embodiment is shown. Please refer to Figure 10 , the master-slave control system 100 includes the indication driving circuit 10 and the battery component 1001 as described above. The battery component 1001 is connected to the indication driving circuit 10, and the battery component 1001 is used to supply power to the indication driving circuit 10. Among them, the battery component 1001 has the function of storing electric energy, and outputs stable electric energy to the indication driving circuit 10 through the battery component 1001, so that the indication driving circuit 10 accesses electric energy and maintains normal circuit functions. The master-slave control system 100 has higher circuit control efficiency and control reliability, and higher practical value.

[0126] Referring to Figures 1 to 9 the embodiments of, the master-slave control system 100 in this embodiment can not only achieve high-precision master-slave control functions to meet the circuit control requirements of users, but also the master-slave control system 100 can achieve the state display and monitoring functions of control performance to improve the safety and stability of the master-slave control performance. Moreover, the master-slave control system 100 in this embodiment has high electric energy utilization efficiency and electric energy conversion efficiency inside, reducing the power supply cost and application cost of the master-slave control system 100, which is beneficial to simplifying the internal circuit structure and wiring structure of the master-slave control system 100. Thus, it solves the problem that when the traditional master-slave control system detects and displays the state of the master-slave control performance, it consumes a large amount of electric energy, resulting in a high master-slave control cost of the traditional master-slave control system, reducing the flexibility and stability of the master-slave control process, and being difficult to be widely applicable.

[0127] Various embodiments are described herein with respect to various devices, circuits, apparatuses, systems, and / or methods. Numerous specific details are set forth to provide a thorough understanding of the overall structure, function, manufacture, and use of the embodiments as described in the specification and illustrated in the accompanying drawings. However, those skilled in the art will understand that the embodiments may be practiced without such specific details. In other instances, well-known operations, components, and elements have been described in detail so as not to obscure the embodiments described in the specification. Those skilled in the art will understand that the embodiments described herein and shown are non-limiting examples, and thus it can be recognized that the specific structural and functional details disclosed herein may be representative and not necessarily limit the scope of the embodiments.

[0128] References throughout the specification to "various embodiments", "in an embodiment", "one embodiment", or "an embodiment", etc., mean that a particular feature, structure, or characteristic described with respect to the embodiment is included in at least one embodiment. Thus, the appearances of the phrases "in various embodiments", "in some embodiments", "in one embodiment", or "in an embodiment", etc., in suitable places throughout the specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. Thus, the particular features, structures, or characteristics shown or described with respect to one embodiment may be included, in whole or in part, in one or more other embodiments in combination with the features, structures, or characteristics of the one or more other embodiments, without assuming that such combination is not logically or functionally limiting. Any directional references (e.g., plus, minus, upper, lower, upward, downward, left, right, leftward, rightward, top, bottom, above, below, vertical, horizontal, clockwise, and counterclockwise) are used for identification purposes to assist the reader in understanding the disclosure and do not create limitations, particularly with respect to the position, orientation, or use of the embodiments.

[0129] Although certain embodiments have been described above in some detail, those skilled in the art may make many variations to the disclosed embodiments without departing from the scope of the disclosure. Connection references (e.g., attach, couple, connect, etc.) should be construed broadly and may include intermediate members between the connections of elements and relative movement between the elements. Thus, a connection reference does not necessarily imply that two elements are directly connected / coupled and in a fixed relationship to each other. The use of "for example" throughout the specification should be construed broadly and is used to provide non-limiting examples of the embodiments of the disclosure, and the disclosure is not limited to such examples. It is intended that all matters included in the above description or shown in the accompanying drawings be construed as illustrative rather than limiting. Changes may be made in details or structure without departing from the disclosure.

[0130] The above are only the preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present application shall be included within the protection scope of the present application.

Claims

1. An indication driving circuit applied to a master-slave control system, characterized in that, it includes: A master control component for generating and outputting a communication signal and a first power signal according to a key signal; and At least one slave control unit connected to the master control component through a bus, and the slave control unit is used to work according to the communication signal and the first power signal and display the working state; Wherein, each of the slave control units includes: A communication component connected to the master control component, and the communication component is used to transmit the communication signal; A slave control component connected to the communication component, and the slave control component receives the communication signal and works according to the communication signal; A power conversion component connected to the master control component and the slave control component, and the power conversion component is used to convert the first power signal to obtain a second power signal; and An indication component connected to the power conversion component, and the indication component displays the working state of the slave control component according to the second power signal; Each of the power conversion components includes: An energy storage component connected to the master control component, and the energy storage component is used to charge according to the first power signal and generate a third power signal; and A buck component connected to the slave control component, the energy storage component and the indication component, and the buck component is used to adjust the voltage of the third power signal according to the pulse width modulation signal output by the slave control component to generate the second power signal; The buck component includes: A state detector, a first inductor, a first diode, a first switching tube and a first resistor; The state detector is connected to the slave control component, the state detector connects to the control end of the first switching tube, the first conduction end of the first switching tube and the anode of the first diode are commonly connected to form the negative extreme of the buck component, the second conduction end of the first switching tube connects to the first end of the first resistor, and the second end of the first resistor is grounded; The cathode of the first diode and the first end of the first inductor are commonly connected to the energy storage component; The second end of the first inductor is the positive extreme of the buck component; The positive extreme and the negative extreme of the buck component are connected to the indication component; The state detector is used to detect the working state of the slave control component according to the pulse width modulation signal and generate a state detection signal.

2. The indication driving circuit according to claim 1, characterized in that, Each of the power conversion components further includes: An anti-backflow component connected to the energy storage component and the master control component, and the anti-backflow component is used to prevent the third power signal from flowing back to the master control component.

3. The indication driving circuit according to claim 1, characterized in that, Each of the indication components includes at least one light emitting diode.

4. The indication driving circuit according to claim 3, characterized in that, The buck component includes: A second inductor, a second diode and a second switching tube; The control terminal of the second switching transistor is connected to the slave control component. The first conducting terminal of the second switching transistor and the anode of the second diode are commonly connected to form the negative terminal of the buck component. The second conducting terminal of the second switching transistor is grounded; The cathode of the second switching transistor and the first end of the second inductor are commonly connected to the energy storage component; The second end of the second inductor is the positive terminal of the buck component; The positive terminal and the negative terminal of the buck component are connected to the indication component.

5. The indication driving circuit according to claim 1, characterized in that, each of the slave control components includes: a voltage stabilizing component, connected to the energy storage component and the communication component, the voltage stabilizing component being configured to perform voltage stabilization processing on the third power signal to obtain a fourth power signal; and a function processing component, connected to the communication component, the voltage stabilizing component and the buck component, the function processing component being configured to operate according to the fourth power signal and the communication signal, and generate the pulse width modulation signal.

6. The indication driving circuit according to claim 5, characterized in that, the function processing component includes a smoke alarm.

7. The indication driving circuit according to claim 2, characterized in that, the anti-backflow component includes: a third diode; the anode of the third diode is connected to the main control component, and the cathode of the third diode is configured to be connected to the energy storage component.

8. A master-slave control system, characterized in that, it includes: the indication driving circuit according to any one of claims 1-7; and a battery component, connected to the indication driving circuit, the battery component being configured to supply power to the indication driving circuit.

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