An electrical fire control circuit with ring bus communication mode

Abstract

The present invention relates to the field of fire alarm technology, and specifically to an electrical fire control circuit with a ring bus communication mode, which can solve the existing problem of prone to disconnection and ensure the normal operation of the system. The circuit includes an electrical control device and a detector, and is characterized in that the electrical control device is provided with two groups of input and output ports, a loop is provided between the two groups of input ports and the output ports, and a detector is provided in parallel on the loop.

Description

Technical Field

[0001] The present invention relates to the technical field of fire alarms, in particular to an electric fire control circuit in a ring bus communication mode. Background Art

[0002] Electrical fire detectors are primarily used in general industrial and residential buildings. Their purpose is to analyze fire incidents caused by electrical circuitry in critical locations within these buildings. They accurately and in real time detect leakage changes in circuitry, and immediately issue an alarm when an anomaly occurs. They employ real-time monitoring of detectors (residual zero-sequence current transformers, temperature sensors, and arc fault sensors) and perform secondary computations on sensor data, converting it into digital signals. This displays the real-time status of the circuitry and transmits it to a host computer via a communication bus. This transforms invisible and intangible power usage into visible, digital monitoring, providing a comprehensive solution for effectively preventing electrical fires. In practical engineering applications, communication bus breaks and short circuits often occur. Short circuits generate real-time alarms in the controller. A break occurs when communication is partially established but not yet established. This can be frustrating for commissioning personnel and firefighters, who struggle to determine whether a fault lies with the fire detector or a break in the circuitry. Summary of the Invention

[0003] In order to solve the problem that the existing wiring method is prone to disconnection and affects the normal operation of the system, the present invention provides an electrical fire control circuit with a ring bus communication method, which can solve the existing problem that is prone to disconnection and ensure the normal operation of the system.

[0004] The technical solution is as follows: an electrical fire control circuit with a ring bus communication mode, which includes an electrical control device and a detector, and is characterized in that the electrical control device is provided with two groups of input and output ports, a loop is provided between the two groups of input ports and the output ports, and a detector is provided in parallel on the loop.

[0005] It is further characterized in that the electrical control device includes a main control circuit module, a host computer communication circuit module, a switch circuit module, a code transceiver circuit module, and a power supply module;

[0006] The main control circuit module includes a single chip microcomputer U1, a latch U2, a memory U3, a storage chip U4, and a transceiver code control chip U7;

[0007] The host computer communication circuit module includes a communication chip U5, an indicator light LED1, and an indicator light LED2. Pin 1 of the communication chip U5 is connected to pin 11 of the single-chip computer U1 through a resistor R46, pins 2 and 3 are connected to pin 9 of the single-chip computer U1, pin 4 is connected to pin 13 of the single-chip computer U1, pin 5 is grounded, pin 8 is connected to VCC, and pins 6 and 7 are connected to the host computer through resistors respectively. The anodes of the indicator lights LED1 and LED2 are connected to VCC through resistors R100 and R101 respectively, and the cathodes of the indicator lights LED1 and LED2 are connected to pins 11 and 13 of the single-chip computer U1 respectively.

[0008] The switching circuit module includes a bus memory Q16, wherein pins 1 and 3 of the bus memory Q16 are connected to a 24V power supply, pin 2 of the bus memory Q16 is connected to one end of a resistor R90, one end of a capacitor C46, ​​and the collector of a transistor Q14, the other end of the resistor R90 and the other end of the capacitor C46 are both grounded, the emitter of the transistor Q14 is connected to one end of a resistor R89 ​​and a 24V power supply, the base of the transistor Q14 is connected to one end of a resistor R71 and the other end of the resistor R89, the other end of the resistor R71 is connected to the collector of a transistor Q10, the emitter of the transistor Q10 is grounded, the base of the transistor Q10 is connected to one end of a resistor R91, one end of a capacitor C45, and one end of a resistor R72, the other end of the capacitor C45 and the other end of the resistor R91 are both grounded, The other end of the resistor R72 is connected to pin 3 of the single-chip microcomputer U1, and pin 4 of the bus memory Q16 is connected to one end of the resistor R93, one end of the capacitor C48, and the collector of the transistor Q15. The other end of the resistor R93 and the other end of the capacitor C48 are both grounded. The emitter of the transistor Q15 is connected to one end of the resistor R92 and a 24V power supply. The base of the transistor Q15 is connected to one end of the resistor R73 and the other end of the resistor R92. The other end of the resistor R73 is connected to the collector of the transistor Q11. The emitter of the transistor Q11 is grounded. The base of the transistor Q11 is connected to one end of the resistor R95, one end of the capacitor C47, and one end of the resistor R74. The other end of the capacitor C47 and the other end of the resistor R95 are both grounded. The other end of the resistor R74 is connected to pin 4 of the single-chip microcomputer U1.

[0009] The transceiver code circuit module includes a transformer T5 and a transformer T6. Pin 1 of the transformer T5 is connected to one end of the fuse M2, pin 2 is connected to one end of the fuse M1, pin 3 is connected to one end of the fuse F13, pin 4 is connected to one end of the fuse F12 and one end of the resistor R140. Pin 1 of the transformer T6 is connected to one end of the fuse M4, pin 2 is connected to one end of the fuse M3, pin 3 is connected to one end of the fuse F15, pin 4 is connected to one end of the fuse F14 and one end of the resistor R141. The other end of the fuse M1, the other end of the fuse M2, the other end of the fuse M3, and the other end of the fuse M4 are connected to the socket J5. The other end of the fuse F12 is connected to the negative electrode of the diode D16, one end of the resistor R11, the cathode of the diode D12, and the diode D1. 3, one end of the capacitor C43, one end of the resistor R40, the other end of the fuse F13 is connected to the cathode of the diode D5, the other end of the resistor R11, one end of the resistor R1, the anode of the diode D29, and one end of the resistor R119, the other end of the fuse F14 is connected to the cathode of the diode D17, one end of the resistor R12, the cathode of the diode D14, the cathode of the diode D15, one end of the capacitor C44, and one end of the resistor R41, the other end of the fuse F15 is connected to the cathode of the diode D5, the other end of the resistor R12, one end of the resistor R2, one end of the diode D30, and one end of the resistor R120, the anode of the diode D16, the anode of the diode D5, the anode of the diode D17, and the anode of the diode D6 are all connected through the fuse. The fuse M5 is grounded, the other end of the resistor R1, the cathode of the diode D29, the other end of the resistor R2, and the cathode of the diode D30 are all grounded, the other end of the capacitor C43 is connected to one end of the resistor R66, the other end of the resistor R66 and the other end of the resistor R40 are connected to the collector of the transistor Q6, the emitter of the transistor Q6 is grounded, and the base is connected to one end of the resistor R110, the other end of the resistor R110 is connected to one end of the resistor R118, the cathode of the diode D20, the cathode of the diode D201, and one end of the capacitor C13, the other end of the resistor R118, the anode of the diode D20, and the anode of the diode D201 are all grounded, and the other end of the capacitor C13 is connected to the output end of the inverter U11C and the cathode of the inverter U11C. The input end is connected to the output end of the inverter U11B, the input end of the inverter U11B is connected to the input end of the inverter U11A, and then connected to pin 18 of the transceiver code control chip U7. The output end of the inverter U11A is connected to one end of the resistor R108, the other end of the resistor R108 is connected to the base of the transistor Q4, the emitter of the transistor Q4 is grounded, and the collector is connected to one end of the resistor R62, the other end of the resistor R62 is connected to one end of the resistor R109 and the base of the transistor Q2, the other end of the resistor R109 is connected to the emitter of the transistor Q2, the collector of the transistor Q2 is connected to the anode of the diode D12, and the anode of the diode D13 is connected to pins 7 and 8 of the bus memory Q16.The other end of the capacitor C44 is connected to one end of the resistor R67, the other end of the resistor R67 and the other end of the resistor R41 are connected to the collector of the transistor Q7, the emitter of the transistor Q7 is grounded, and the base is connected to one end of the resistor R113, the other end of the resistor R130 is connected to one end of the resistor R127, the cathode of the diode D21, the cathode of the diode D211, and one end of the capacitor C14, the other end of the resistor R127, the anode of the diode D21, and the anode of the diode D211 are all grounded, the other end of the capacitor C14 is connected to the output end of the inverter U11D, the input end of the inverter U11D is connected to the output end of the inverter U11E, and the input end of the inverter U11E is connected to the inverter U11D. The input end of the phase inverter U11F is connected to the 16th pin of the transceiver code control chip U7, the output end of the inverter U11F is connected to one end of the resistor R111, the other end of the resistor R111 is connected to the base of the transistor Q5, the emitter of the transistor Q5 is grounded, and the collector is connected to one end of the resistor R63, the other end of the resistor R63 is connected to one end of the resistor R112 and the base of the transistor Q13, the other end of the resistor R112 is connected to the emitter of the transistor Q13, the collector of the transistor Q13 is connected to the anode of the diode D14, the anode of the diode D15 is connected to the 5th and 6th pins of the bus memory Q16, and the other end of the resistor R119 is connected to the resistor One end of R119, the other end of the resistor R119 is connected to pin 10 of the operational amplifier U24C, and pin 9 of the operational amplifier U24C is connected to one end of the resistor R78, one end of the resistor R79, and one end of the capacitor C34. The other end of the resistor R79 is grounded. The other end of the capacitor C34 and the other end of the resistor R79 are connected to pin 8 of the operational amplifier U24C and then connected to one end of the resistor R82, one end of the resistor R83, one end of the resistor R134, and the drain end of the MOS tube Q2. The other end of the resistor R82 is connected to one end of the resistor R96, the collector of the transistor Q8, and the gate end of the MOS tube Q2. The emitter of the transistor Q8 is grounded, and the base is connected to pin 14 of the transceiver code control chip U7 through the resistor R126. The other end of the resistor R9 and the other end of the resistor R83 are connected to one end of the capacitor C11 and one end of the resistor R38. The other end of the resistor R134 is connected to one end of the resistor R135 and one end of the capacitor C23. The other end of the resistor R38 is connected to one end of the resistor R87 and pin 6 of the op amp U24B. The other end of the resistor R135 is connected to pin 5 of the op amp U24B. The other end of the resistor R87 is connected to pin 7 of the op amp U24B and then to pin 2 of the op amp U24A. The other end of the resistor R120 is connected to pin 10 of the op amp U25C. Pin 9 of the op amp U24C is connected to one end of the resistor R75, one end of the resistor R76, and one end of the capacitor C35. The other end of the resistor R75 is grounded.The other end of the capacitor C35 and the other end of the resistor R76 are connected to the output end of the operational amplifier U25C, and then connected to one end of the resistor R80, one end of the resistor R81, one end of the resistor R132, and the drain end of the MOS tube Q3. The other end of the resistor R80 is connected to one end of the resistor R97, the collector of the transistor Q9, and the gate end of the MOS tube Q3. The emitter of the transistor Q9 is grounded, and the base is connected to the 12th pin of the transceiver control chip U7 through the resistor R122. The other end of the resistor R10 and the other end of the resistor R81 are connected to the capacitor C 12 one end and one end of the resistor R39, the other end of the resistor R132 is connected to one end of the resistor R133 and one end of the capacitor C24, the other end of the resistor R39 is connected to one end of the resistor R88 and the 6th pin of the operational amplifier U25B, the other end of the resistor R133 is connected to the 5th pin of the operational amplifier U25B, the other end of the resistor R88 is connected to the 7th pin of the operational amplifier U25B and then connected to the 2nd pin of the operational amplifier U25A, the 3rd pin of the operational amplifier U24A and the 3rd pin of the operational amplifier U25A are both connected to one end of the resistor R70 and one end of the resistor R3, the Pin 1 of the op amp U24A is connected to pin 11 of the transceiver code control chip U7, pin 1 of the op amp U25A is connected to pin 13 of the transceiver code control chip U7, the other end of the resistor R70 is connected to one end of the resistor R94 and connected to VCC, the other end of the resistor R94 is connected to one end of the resistor R99, pin 12 of the op amp U24B, and pin 12 of the op amp U25B, pin 13 of the op amp U24B is connected to one end of the resistor R104, and pin 14 is connected to pin 15 of the transceiver code control chip U7, the op amp U25B Pin 13 is connected to one end of the resistor R105, and pin 14 is connected to pin 17 of the transceiver code control chip U7. The other end of the resistor R104 is connected to the other end of the resistor R140 and then connected to one end of the resistor R106 and one end of the capacitor C9. The other end of the resistor R106 and the other end of the capacitor C9 are both grounded. The other end of the resistor R105 is connected to the other end of the resistor R141 and then connected to one end of the resistor R107 and one end of the capacitor C10. The other end of the resistor R107 and the other end of the capacitor C10 are both grounded.

[0010] The power supply module includes a voltage stabilizing chip U13 and a boost converter chip U12. Pin 1 of the voltage stabilizing chip is connected to the cathode of the diode D11 and one end of the capacitor C26. The other end of the capacitor C26 is grounded. The anode of the diode D11 is connected to the cathode of the diode D28 and a 24V power supply. The anode of the diode D28 is connected to DC+. Pins 3 and 5 of the voltage stabilizing chip U13 are both grounded. Pin 2 of the voltage stabilizing chip U13 is connected to the cathode of the diode D1 and one end of the inductor L1. The anode of the diode D1 is grounded. Pin 4 of the voltage stabilizing chip U13 is connected to one end of the fuse F2 and the other end of the inductor L1. One end, the other end of the fuse is connected to one end of the diode D4, one end of the capacitor C30, one end of the capacitor C42 and is the VCC output end, the other end of the diode D4, the other end of the capacitor C30, and the other end of the capacitor C42 are all grounded, the 1st pin of the boost converter chip U12 is connected to one end of the resistor R34, the 5th pin of the career converter chip U12 is connected to one end of the capacitor C28, one end of the capacitor C40, and one end of the inductor L2, the other end of the inductor L2 is connected to one end of the capacitor C36, the anode of the diode D2, and the 4th pin of the boost converter chip U12, the cathode of the diode D2 is connected to one end of the capacitor C31, the capacitor C40, and the inductor L2. One end of capacitor C41 and one end of resistor R4 are the 30V power output end, the other end of the resistor R4 is connected to the other end of the capacitor C36, the other end of the resistor R34 is connected to one end of the capacitor C18, the other end of the capacitor C28, the other end of the capacitor C40, the other end of the capacitor C18, the other end of the capacitor C31, the other end of the capacitor C41, and the 3rd pin of the voltage stabilizing chip U12 are all grounded, the 2nd pin of the boost converter chip U12 is connected to one end of the resistor R136 and one end of the resistor R77, the other end of the resistor R77 is grounded, the other end of the resistor R136 is connected to one end of the resistor R150, the operational amplifier U20A Pin 1, pin 2 of the operational amplifier U20A is connected to one end of the resistor R98 and the other end of the resistor R150, pin 3 of the operational amplifier U20A is connected to one end of the resistor R125, the other end of the resistor R98 is connected to one end of the resistor R124 and one end of the resistor R146, the other end of the resistor R125 is connected to one end of the resistor R123 and one end of the resistor R145, the other end of the resistor R145 and the other end of the resistor R146 are both grounded, the other end of the resistor R123 is connected to a 30V power supply, the other end of the resistor R124 is connected to a 24V power supply, pins 6 and 7 of the operational amplifier U20B are connected, and pin 5 is grounded.

[0011] After adopting the present invention, a ring wiring mode is adopted, and the detectors are connected in parallel to the loop. When the line is broken, a double-side coding mode can be adopted to ensure the normal operation of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the present invention;

[0013] Figure 2Schematic diagram of the main control circuit module;

[0014] Figure 3 This is the schematic diagram of the host computer communication circuit module;

[0015] Figure 4 This is the schematic diagram of the switch circuit module;

[0016] Figure 5 This is the schematic diagram of the power module;

[0017] Figure 6 Principle of the transceiver circuit module Figure 1 ;

[0018] Figure 7 Principle of the transceiver circuit module Figure 2 ;

[0019] Figure 8 Principle of the transceiver circuit module Figure 3 ;

[0020] Figure 9 Principle of the transceiver circuit module Figure 4 . DETAILED DESCRIPTION

[0021] See Figures 1 to 9 The electrical fire control circuit of the ring bus communication mode includes an electrical control device and a detector, and is characterized in that the electrical control device is provided with two groups of input and output ports, a loop is provided between the two groups of input and output ports, and the detector is provided in parallel on the loop.

[0022] The electrical control device includes a main control circuit module, a host computer communication circuit module, a switch circuit module, a code transceiver circuit module, and a power supply module.

[0023] The main control circuit module includes a single chip microcomputer U1, a latch U2, a memory U3, a storage chip U4, and a transceiver code control chip U7.

[0024] The upper computer communication circuit module includes a communication chip U5, an indicator light LED1, and an indicator light LED2. Pin 1 of the communication chip U5 is connected to pin 11 of the microcontroller U1 through a resistor R46, pins 2 and 3 are connected to pin 9 of the microcontroller U1, pin 4 is connected to pin 13 of the microcontroller U1, pin 5 is grounded, pin 8 is connected to VCC, pins 6 and 7 are connected to the upper computer through resistors respectively, the anodes of the indicator lights LED1 and LED2 are connected to VCC through resistors R100 and R101 respectively, and the cathodes of the indicator lights LED1 and LED2 are connected to pins 11 and 13 of the microcontroller U1 respectively.

[0025] The switching circuit module includes a bus memory Q16, wherein pins 1 and 3 of the bus memory Q16 are connected to a 24V power supply, pin 2 of the bus memory Q16 is connected to one end of a resistor R90, one end of a capacitor C46, ​​and the collector of a transistor Q14, the other end of the resistor R90 and the other end of the capacitor C46 are both grounded, the emitter of the transistor Q14 is connected to one end of a resistor R89 ​​and the 24V power supply, the base of the transistor Q14 is connected to one end of a resistor R71 and the other end of the resistor R89, the other end of the resistor R71 is connected to the collector of the transistor Q10, the emitter of the transistor Q10 is grounded, the base of the transistor Q10 is connected to one end of a resistor R91, one end of a capacitor C45, and one end of a resistor R72, and the other end of the capacitor C45 and the other end of the resistor R91 are both grounded. The other end of the resistor R72 is connected to pin 3 of the microcontroller U1, and pin 4 of the bus memory Q16 is connected to one end of the resistor R93, one end of the capacitor C48, and the collector of the transistor Q15. The other end of the resistor R93 and the other end of the capacitor C48 are both grounded. The emitter of the transistor Q15 is connected to one end of the resistor R92 and the 24V power supply. The base of the transistor Q15 is connected to one end of the resistor R73 and the other end of the resistor R92. The other end of the resistor R73 is connected to the collector of the transistor Q11. The emitter of the transistor Q11 is grounded. The base of the transistor Q11 is connected to one end of the resistor R95, one end of the capacitor C47, and one end of the resistor R74. The other end of the capacitor C47 and the other end of the resistor R95 are both grounded. The other end of the resistor R74 is connected to pin 4 of the microcontroller U1.

[0026] The transceiver code circuit module includes a transformer T5 and a transformer T6. Pin 1 of the transformer T5 is connected to one end of the fuse M2, pin 2 is connected to one end of the fuse M1, pin 3 is connected to one end of the fuse F13, pin 4 is connected to one end of the fuse F12 and one end of the resistor R140. Pin 1 of the transformer T6 is connected to one end of the fuse M4, pin 2 is connected to one end of the fuse M3, pin 3 is connected to one end of the fuse F15, pin 4 is connected to one end of the fuse F14 and one end of the resistor R141. The other end of the fuse M1, the other end of the fuse M2, the other end of the fuse M3, and the other end of the fuse M4 are connected to the socket J5. The other end of the fuse F12 is connected to the negative electrode of the diode D16, one end of the resistor R11, the cathode of the diode D12, the cathode of the diode D13, and one end of the capacitor C43. , one end of resistor R40, the other end of fuse F13 is connected to the cathode of diode D5, the other end of resistor R11, one end of resistor R1, the anode of diode D29, and one end of resistor R119. The other end of fuse F14 is connected to the cathode of diode D17, one end of resistor R12, the cathode of diode D14, the cathode of diode D15, one end of capacitor C44, and one end of resistor R41. The other end of fuse F15 is connected to the cathode of diode D5, the other end of resistor R12, one end of resistor R2, one end of diode D30, and one end of resistor R120. The anode of diode D16, the anode of diode D5, the anode of diode D17, and the anode of diode D6 are all grounded through fuse M5. The other end of resistor R1, the cathode of diode D29, and the cathode of capacitor C44 are all grounded. The other end of resistor R2 and the cathode of diode D30 are grounded, the other end of capacitor C43 is connected to one end of resistor R66, the other end of resistor R66 and the other end of resistor R40 are connected to the collector of transistor Q6, the emitter of transistor Q6 is grounded, and the base is connected to one end of resistor R110, the other end of resistor R110 is connected to one end of resistor R118, the cathode of diode D20, the cathode of diode D201, and one end of capacitor C13, the other end of resistor R118, the anode of diode D20, and the anode of diode D201 are all grounded, the other end of capacitor C13 is connected to the output end of inverter U11C, the input end of inverter U11C is connected to the output end of inverter U11B, the input end of inverter U11B is connected to the input end of inverter U11A, and then connected to Pin 18 of the receiving and transmitting code control chip U7 and the output end of the inverter U11A are connected to one end of the resistor R108, the other end of the resistor R108 is connected to the base of the transistor Q4, the emitter of the transistor Q4 is grounded, and the collector is connected to one end of the resistor R62, the other end of the resistor R62 is connected to one end of the resistor R109 and the base of the transistor Q2, the other end of the resistor R109 is connected to the emitter of the transistor Q2, the collector of the transistor Q2 is connected to the anode of the diode D12, the anode of the diode D13 is connected to pins 7 and 8 of the bus memory Q16, the other end of the capacitor C44 is connected to one end of the resistor R67, the other end of the resistor R67 and the other end of the resistor R41 are connected to the collector of the transistor Q7, the emitter of the transistor Q7 is grounded, and the base is connected to one end of the resistor R113.The other end of resistor R130 is connected to one end of resistor R127, the cathode of diode D21, the cathode of diode D211, and one end of capacitor C14. The other end of resistor R127, the anode of diode D21, and the anode of diode D211 are all grounded. The other end of capacitor C14 is connected to the output end of inverter U11D, the input end of inverter U11D is connected to the output end of inverter U11E, the input end of inverter U11E is connected to the input end of inverter U11F, and then connected to pin 16 of the transceiver code control chip U7. The output end of inverter U11F is connected to one end of resistor R111, and the other end of resistor R111 is connected to the base of transistor Q5. The emitter of transistor Q5 is grounded, and the collector is connected to one end of resistor R63. The other end of resistor R63 Connect one end of resistor R112 to the base of transistor Q13, the other end of resistor R112 to the emitter of transistor Q13, the collector of transistor Q13 to the anode of diode D14, the anode of diode D15 to pins 5 and 6 of bus memory Q16, the other end of resistor R119 to one end of resistor R119, the other end of resistor R119 to pin 10 of op amp U24C, pin 9 of op amp U24C to one end of resistor R78, one end of resistor R79, and one end of capacitor C34, the other end of resistor R79 to ground, the other end of capacitor C34 and the other end of resistor R79 are connected to pin 8 of op amp U24C, and then connected to one end of resistor R82, one end of resistor R83, one end of resistor R134, and the drain of MOS tube Q2. The other end of resistor R82 is connected to one end of resistor R96, the collector of transistor Q8, and the gate end of MOS tube Q2. The emitter of transistor Q8 is grounded, and the base is connected to pin 14 of transceiver code control chip U7 through resistor R126. The other end of resistor R9 and the other end of resistor R83 are connected to one end of capacitor C11 and one end of resistor R38. The other end of resistor R134 is connected to one end of resistor R135 and one end of capacitor C23. The other end of resistor R38 is connected to one end of resistor R87 and pin 6 of op amp U24B. The other end of resistor R135 is connected to pin 5 of op amp U24B. The other end of resistor R87 is connected to pin 7 of op amp U24B and then to pin 2 of op amp U24A. The other end of resistor R120 is connected to pin 10 of op amp U25C. Pin 9 of C is connected to one end of resistor R75, one end of resistor R76, and one end of capacitor C35. The other end of resistor R75 is grounded. The other end of capacitor C35 and the other end of resistor R76 are connected to the output end of op amp U25C and then connected to one end of resistor R80, one end of resistor R81, one end of resistor R132, and the drain end of MOS tube Q3. The other end of resistor R80 is connected to one end of resistor R97, the collector of transistor Q9, and the gate end of MOS tube Q3. The emitter of transistor Q9 is grounded, and the base is connected to pin 12 of transceiver code control chip U7 through resistor R122. The other end of resistor R10 and the other end of resistor R81 are connected to one end of capacitor C12 and one end of resistor R39. The other end of resistor R132 is connected to one end of resistor R133 and one end of capacitor C24.The other end of resistor R39 is connected to one end of resistor R88 and pin 6 of op amp U25B. The other end of resistor R133 is connected to pin 5 of op amp U25B. The other end of resistor R88 is connected to pin 7 of op amp U25B and then to pin 2 of op amp U25A. Pin 3 of op amp U24A and pin 3 of op amp U25A are both connected to one end of resistor R70 and one end of resistor R3. Pin 1 of op amp U24A is connected to pin 11 of transceiver code control chip U7. Pin 1 of op amp U25A is connected to pin 13 of transceiver code control chip U7. The other end of resistor R70 is connected to one end of resistor R94 and to VCC. The other end of resistor R94 is connected to one end of resistor R99 and pin 1 of op amp U24B. Pin 12 and pin 12 of op amp U25B, pin 13 of op amp U24B are connected to one end of resistor R104, and pin 14 is connected to pin 15 of the transceiver code control chip U7. Pin 13 of op amp U25B is connected to one end of resistor R105, and pin 14 is connected to pin 17 of the transceiver code control chip U7. The other end of resistor R104 is connected to the other end of resistor R140 and then to one end of resistor R106 and one end of capacitor C9. The other end of resistor R106 and the other end of capacitor C9 are both grounded. The other end of resistor R105 is connected to the other end of resistor R141 and then to one end of resistor R107 and one end of capacitor C10. The other end of resistor R107 and the other end of capacitor C10 are both grounded. Among them, T1out loop and T2out convert the return code current into a voltage circuit. U24A is used for T1out code reception, U25A is used for T2out code reception, U24D is used to determine whether there is a short circuit or loop break between T1out+ and T1out-, and U25D is used to determine whether there is a short circuit or loop break between T2out+ and T2out-. The Q10 port is used to control T1out code transmission, and the Q11 port is used to control T2out code transmission.

[0027] The power supply module includes a voltage regulator chip U13 and a boost converter chip U12. Pin 1 of the voltage regulator chip is connected to the cathode of the diode D11 and one end of the capacitor C26. The other end of the capacitor C26 is grounded. The anode of the diode D11 is connected to the cathode of the diode D28 and the 24V power supply. The anode of the diode D28 is connected to DC+. Pins 3 and 5 of the voltage regulator chip U13 are both grounded. Pin 2 of the voltage regulator chip U13 is connected to the cathode of the diode D1 and one end of the inductor L1. The anode of the diode D1 is grounded. Pin 4 of the voltage regulator chip U13 is connected to one end of the fuse F2 and the other end of the inductor L1. The other end of the fuse is connected to the diode One end of diode D4, one end of capacitor C30, and one end of capacitor C42 are VCC output ends, outputting 5V constant voltage with a maximum current of 3A. The other end of diode D4, the other end of capacitor C30, and the other end of capacitor C42 are all grounded. Pin 1 of boost converter chip U12 is connected to one end of resistor R34, and pin 5 of boost converter chip U12 is connected to one end of capacitor C28, one end of capacitor C40, and one end of inductor L2. The other end of inductor L2 is connected to one end of capacitor C36, the anode of diode D2, and pin 4 of boost converter chip U12. The cathode of diode D2 is connected to one end of capacitor C31, one end of capacitor C41, and one end of inductor L2. One end of resistor R4 is the 30V power supply output end, the other end of resistor R4 is connected to the other end of capacitor C36, the other end of resistor R34 is connected to one end of capacitor C18, the other end of capacitor C28, the other end of capacitor C40, the other end of capacitor C18, the other end of capacitor C31, the other end of capacitor C41, and pin 3 of voltage regulator chip U12 are all grounded, pin 2 of boost converter chip U12 is connected to one end of resistor R136 and one end of resistor R77, the other end of resistor R77 is grounded, the other end of resistor R136 is connected to one end of resistor R150 and pin 1 of op amp U20A, and pin 2 of op amp U20A is connected to resistor R9 8, the other end of the resistor R150, pin 3 of the operational amplifier U20A is connected to one end of the resistor R125, the other end of the resistor R98 is connected to one end of the resistor R124 and one end of the resistor R146, the other end of the resistor R125 is connected to one end of the resistor R123 and one end of the resistor R145, the other end of the resistor R145 and the other end of the resistor R146 are both grounded, the other end of the resistor R123 is connected to a 30V power supply, the other end of the resistor R124 is connected to a 24V power supply, pins 6 and 7 of the operational amplifier U20B are connected, and pin 5 is grounded. Through the differential amplifier circuit, the voltage difference between the input voltage and the output voltage is always maintained at around 7V.

[0028] The method for measuring T1out+ / T1out- open circuit is: under normal circumstances, send codes from T1out+ unilaterally. If no value is found, change to sending codes from both T1out+ and T2out+. If a value is found, it means the line is open, and send codes from both sides.

[0029] The method for measuring line break recovery is: first disconnect T2out- and T2out+ outputs, delay 100uS, send a high level from T1+, delay 300uS, measure whether the B13 signal output by U25D is 0, delay 50uS and measure once.

[0030] Test 4 times in total. If 3 of them are 0, it means the line is not broken and unilateral code transmission can be restored.

[0031] Otherwise, it will still send code on both sides. The measured line break recovery time is about 600uS.

Claims

1. An electrical fire control circuit with a ring bus communication mode, comprising an electrical control device and a detector, characterized in that: The electrical control device is provided with two groups of input and output ports, a loop is provided between the two groups of input ports and the output ports, and a detector is provided in parallel on the loop; the electrical control device includes a main control circuit module, a host computer communication circuit module, a switch circuit module, a transceiver circuit module, and a power supply module, and the main control circuit module is connected to the host computer communication circuit module, the switch circuit module, the transceiver circuit module, and the power supply module; the main control circuit module includes a single-chip microcomputer U1, a latch U2, a memory U3, a storage chip U4, and a transceiver control chip U7, and the single-chip microcomputer U1 is connected to the latch U2, the memory U3, the storage chip U4, and the transceiver control chip U7; the switch circuit module includes a total Line memory Q16, pins 1 and 3 of the bus memory Q16 are connected to a 24V power supply, pin 2 of the bus memory Q16 is connected to one end of a resistor R90, one end of a capacitor C46, ​​and the collector of a transistor Q14, the other end of the resistor R90 and the other end of the capacitor C46 are both grounded, the emitter of the transistor Q14 is connected to one end of a resistor R89 ​​and a 24V power supply, the base of the transistor Q14 is connected to one end of a resistor R71 and the other end of the resistor R89, the other end of the resistor R71 is connected to the collector of a transistor Q10, the emitter of the transistor Q10 is grounded, the base of the transistor Q10 is connected to one end of a resistor R91, one end of a capacitor C45, one end of a resistor R72, the other end of the capacitor C45 The other end of the resistor R91 is grounded, the other end of the resistor R72 is connected to pin 3 of the single-chip microcomputer U1, and pin 4 of the bus memory Q16 is connected to one end of the resistor R93, one end of the capacitor C48, and the collector of the transistor Q15. The other end of the resistor R93 and the other end of the capacitor C48 are grounded. The emitter of the transistor Q15 is connected to one end of the resistor R92 and a 24V power supply. The base of the transistor Q15 is connected to one end of the resistor R73 and the other end of the resistor R92. The other end of the resistor R73 is connected to the collector of the transistor Q11. The emitter of the transistor Q11 is grounded. The base of the transistor Q11 is connected to one end of the resistor R95, one end of the capacitor C47, and one end of the resistor R74. The other end of C47 and the other end of the resistor R95 are both grounded, and the other end of the resistor R74 is connected to pin 4 of the single-chip microcomputer U1; the transceiver circuit module includes a transformer T5 and a transformer T6, pin 1 of the transformer T5 is connected to one end of the fuse M2, pin 2 is connected to one end of the fuse M1, pin 3 is connected to one end of the fuse F13, pin 4 is connected to one end of the fuse F12 and one end of the resistor R140, pin 1 of the transformer T6 is connected to one end of the fuse M4, pin 2 is connected to one end of the fuse M3, pin 3 is connected to one end of the fuse F15, pin 4 is connected to one end of the fuse F14 and one end of the resistor R141, the other end of the fuse M1, the other end of the fuse M2, the other end of the fuse M3, and the other end of the fuse M4 are connected to the socket J5,The other end of the fuse F12 is connected to the cathode of the diode D16, one end of the resistor R11, the cathode of the diode D12, the cathode of the diode D13, one end of the capacitor C43, and one end of the resistor R40. The other end of the fuse F13 is connected to the cathode of the diode D5, the other end of the resistor R11, one end of the resistor R1, the anode of the diode D29, and one end of the resistor R119. The other end of the fuse F14 is connected to the cathode of the diode D17, one end of the resistor R12, the cathode of the diode D14, the cathode of the diode D15, one end of the capacitor C44, and one end of the resistor R41. The other end of the fuse F15 is connected to the cathode of the diode D6, the other end of the resistor R12, one end of the resistor R2, and the diode D30. One end, one end of the resistor R120, the anode of the diode D16, the anode of the diode D5, the anode of the diode D17, and the anode of the diode D6 are all grounded through the fuse M5, the other end of the resistor R1, the cathode of the diode D29, the other end of the resistor R2, and the cathode of the diode D30 are all grounded, the other end of the capacitor C43 is connected to one end of the resistor R66, the other end of the resistor R66 and the other end of the resistor R40 are connected to the collector of the transistor Q6, the emitter of the transistor Q6 is grounded, and the base is connected to one end of the resistor R110, the other end of the resistor R110 is connected to one end of the resistor R118, the cathode of the diode D20, the cathode of the diode D201, and one end of the capacitor C13, the resistor R11 8, the anode of the diode D20, and the anode of the diode D201 are all grounded. The other end of the capacitor C13 is connected to the output end of the inverter U11C, the input end of the inverter U11C is connected to the output end of the inverter U11B, the input end of the inverter U11B is connected to the input end of the inverter U11A, and then connected to the 18th pin of the transceiver control chip U7. The output end of the inverter U11A is connected to one end of the resistor R108, the other end of the resistor R108 is connected to the base of the transistor Q4, the emitter of the transistor Q4 is grounded, and the collector is connected to one end of the resistor R62. The other end of the resistor R62 is connected to one end of the resistor R109 and the base of the transistor Q12. The resistor R10 9 is connected to the emitter of the transistor Q12, the collector of the transistor Q12 is connected to the anode of the diode D12, the anode of the diode D13 is connected to pins 7 and 8 of the bus memory Q16, the other end of the capacitor C44 is connected to one end of the resistor R67, the other end of the resistor R67 and the other end of the resistor R41 are connected to the collector of the transistor Q7, the emitter of the transistor Q7 is grounded, and the base is connected to one end of the resistor R113, the other end of the resistor R113 is connected to one end of the resistor R127, the cathode of the diode D21, the cathode of the diode D211, and one end of the capacitor C14, the other end of the resistor R127, the anode of the diode D21, and the anode of the diode D211 are all grounded.The other end of the capacitor C14 is connected to the output end of the inverter U11D, the input end of the inverter U11D is connected to the output end of the inverter U11E, the input end of the inverter U11E is connected to the input end of the inverter U11F and then connected to the 16th pin of the transceiver control chip U7, the output end of the inverter U11F is connected to one end of the resistor R111, the other end of the resistor R111 is connected to the base of the transistor Q5, the emitter of the transistor Q5 is grounded, and the collector is connected to one end of the resistor R63, the other end of the resistor R63 is connected to one end of the resistor R112 and the base of the transistor Q13, the other end of the resistor R112 is connected to the emitter of the transistor Q13, and the collector of the transistor Q13 is connected to the diode The anode of D14, the anode of the diode D15 is connected to the 5th and 6th pins of the bus memory Q16, the other end of the resistor R119 is connected to the 10th pin of the operational amplifier U24C, the 9th pin of the operational amplifier U24C is connected to one end of the resistor R78, one end of the resistor R79, and one end of the capacitor C34, the other end of the resistor R78 is grounded, the other end of the capacitor C34 and the other end of the resistor R79 are connected to the 8th pin of the operational amplifier U24C, and then connected to one end of the resistor R82, one end of the resistor R83, one end of the resistor R134, and the drain end of the MOS tube Q2, the other end of the resistor R82 is connected to one end of the resistor R96, the collector of the transistor Q8, and the gate end of the MOS tube Q2, the emitter of the transistor Q8 is grounded, and the base is connected to the drain end of the MOS tube Q2 through the resistor R126. The 14th pin of the receiving code control chip U7, the other end of the resistor R9 and the other end of the resistor R83 are connected to one end of the capacitor C11 and one end of the resistor R38, the other end of the resistor R134 is connected to one end of the resistor R135 and one end of the capacitor C23, the other end of the resistor R38 is connected to one end of the resistor R87 and the 6th pin of the op amp U24B, the other end of the resistor R135 is connected to the 5th pin of the op amp U24B, the other end of the resistor R87 is connected to the 7th pin of the op amp U24B and then connected to the 2nd pin of the op amp U24A, the other end of the resistor R120 is connected to the 10th pin of the op amp U25C, the 9th pin of the op amp U25C is connected to one end of the resistor R75, one end of the resistor R76 and one end of the capacitor C35, the other end of the resistor R75 is grounded, The other end of the capacitor C35 and the other end of the resistor R76 are connected to the output end of the operational amplifier U25C, and then connected to one end of the resistor R80, one end of the resistor R81, one end of the resistor R132, and the drain end of the MOS tube Q3. The other end of the resistor R80 is connected to one end of the resistor R97, the collector of the transistor Q9, and the gate end of the MOS tube Q3. The emitter of the transistor Q9 is grounded, and the base is connected to pin 12 of the transceiver code control chip U7 through the resistor R122. The other end of the resistor R10 and the other end of the resistor R81 are connected to one end of the capacitor C12 and one end of the resistor R39. The other end of the resistor R132 is connected to one end of the resistor R133 and one end of the capacitor C24. The other end of the resistor R39 is connected to one end of the resistor R88 and pin 6 of the operational amplifier U25B.The other end of the resistor R133 is connected to pin 5 of the operational amplifier U25B, the other end of the resistor R88 is connected to pin 7 of the operational amplifier U25B and then to pin 2 of the operational amplifier U25A, the 3rd pin of the operational amplifier U24A and the 3rd pin of the operational amplifier U25A are both connected to one end of the resistor R70 and one end of the resistor R3, the 1st pin of the operational amplifier U24A is connected to pin 11 of the transceiver code control chip U7, the 1st pin of the operational amplifier U25A is connected to pin 13 of the transceiver code control chip U7, the other end of the resistor R70 is connected to the One end of the resistor R94 is connected to VCC, and the other end of the resistor R94 is connected to one end of the resistor R99, the 12th pin of the op amp U24B, and the 12th pin of the op amp U25B. The 13th pin of the op amp U24B is connected to one end of the resistor R104, and the 14th pin is connected to the 15th pin of the transceiver code control chip U7. The 13th pin of the op amp U25B is connected to one end of the resistor R105, and the 14th pin is connected to the 17th pin of the transceiver code control chip U7. The other end of the resistor R104 is connected to the other end of the resistor R140 and then connected to Connect one end of the resistor R106 and one end of the capacitor C9, and the other end of the resistor R106 and the other end of the capacitor C9 are grounded. The other end of the resistor R105 is connected to the other end of the resistor R141, and then connected to one end of the resistor R107 and one end of the capacitor C10. The other end of the resistor R107 and the other end of the capacitor C10 are grounded. The method for measuring the open circuit of the ports T1out+ and T1out- of the electrical control device is: when normal, send a code from T1out+ unilaterally. If no value is found, change to the The ports T1out+ and T2out+ of the electrical control device send codes on both sides. If a value is found, it means the line is broken and the code is sent on both sides. The method for measuring the line break recovery is: first disconnect the outputs of the ports T2out- and T2out+ of the electrical control device, delay 100uS, send a high level from T1out+, delay 300uS, and measure whether the B13 signal output by U25B is 0. Delay 50uS and measure once. Measure 4 times in total. If it is 0 3 times, it means the line is not broken and restore the unilateral code.

2. The electrical fire control circuit of the ring bus communication mode according to claim 1, characterized in that: The host computer communication circuit module includes a communication chip U5, an indicator light LED1, and an indicator light LED2. Pin 1 of the communication chip U5 is connected to pin 11 of the single-chip computer U1 through a resistor R46, pins 2 and 3 of the communication chip U5 are connected to pin 9 of the single-chip computer U1, pin 4 of the communication chip U5 is connected to pin 13 of the single-chip computer U1, pin 5 of the communication chip U5 is grounded, pin 8 of the communication chip U5 is connected to VCC, pins 6 and 7 of the communication chip U5 are respectively connected to the host computer through resistors, the anodes of the indicator light LED1 and the indicator light LED2 are respectively connected to VCC through resistors R100 and R101, and the cathodes of the indicator light LED1 and the indicator light LED2 are respectively connected to pins 11 and 13 of the single-chip computer U1.

3. The electrical fire control circuit with a ring bus communication method according to claim 1, characterized in that: The power supply module includes a voltage stabilizing chip U13 and a boost converter chip U12. Pin 1 of the voltage stabilizing chip is connected to the cathode of the diode D11 and one end of the capacitor C26. The other end of the capacitor C26 is grounded. The anode of the diode D11 is connected to the cathode of the diode D28 and a 24V power supply. The anode of the diode D28 is connected to DC+. Pins 3 and 5 of the voltage stabilizing chip U13 are both grounded. Pin 2 of the voltage stabilizing chip U13 is connected to the cathode of the diode D1 and one end of the inductor L1. The anode of the diode D1 is grounded. Pin 4 of the voltage stabilizing chip U13 is connected to one end of the fuse F2 and the other end of the inductor L1. One end, the other end of the fuse is connected to one end of the diode D4, one end of the capacitor C30, one end of the capacitor C42 and is the VCC output end, the other end of the diode D4, the other end of the capacitor C30, and the other end of the capacitor C42 are all grounded, the 1st pin of the boost converter chip U12 is connected to one end of the resistor R34, the 5th pin of the boost converter chip U12 is connected to one end of the capacitor C28, one end of the capacitor C40, and one end of the inductor L2, the other end of the inductor L2 is connected to one end of the capacitor C36, the anode of the diode D2, and the 4th pin of the boost converter chip U12, the cathode of the diode D2 is connected to one end of the capacitor C31, the cathode of the capacitor C40, and the inductor L2. One end of capacitor C41 and one end of resistor R4 are the 30V power output end, the other end of the resistor R4 is connected to the other end of the capacitor C36, the other end of the resistor R34 is connected to one end of the capacitor C18, the other end of the capacitor C28, the other end of the capacitor C40, the other end of the capacitor C18, the other end of the capacitor C31, the other end of the capacitor C41, and the 3rd pin of the voltage stabilizing chip U12 are all grounded, the 2nd pin of the boost converter chip U12 is connected to one end of the resistor R136 and one end of the resistor R77, the other end of the resistor R77 is grounded, the other end of the resistor R136 is connected to one end of the resistor R150, the operational amplifier U20A Pin 1, pin 2 of the operational amplifier U20A is connected to one end of the resistor R98 and the other end of the resistor R150, pin 3 of the operational amplifier U20A is connected to one end of the resistor R125, the other end of the resistor R98 is connected to one end of the resistor R124 and one end of the resistor R146, the other end of the resistor R125 is connected to one end of the resistor R123 and one end of the resistor R145, the other end of the resistor R145 and the other end of the resistor R146 are both grounded, the other end of the resistor R123 is connected to a 30V power supply, the other end of the resistor R124 is connected to a 24V power supply, pins 6 and 7 of the operational amplifier U20B are connected, and pin 5 is grounded.

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