Intelligent control device for electric fire pump

Abstract

The utility model provides an intelligent control device for an electric fire pump, which comprises a central processing unit module, a pipe network pressure acquisition circuit and a relay switch circuit connected with the fire pump. The system also comprises a communication module and a one-key downloading module. The one-key downloading module is connected with the central processing unit and is used for sending a one-key downloading instruction to the central processing unit; the central processing unit module enters a downloading mode according to the one-key downloading instruction to perform program updating; and the communication module is connected with the central processing unit module and is used for sending an upgrading program issued by an upper computer to the central processing unit module.

Description

Technical Field

[0001] This utility model relates to the field of control, specifically to an intelligent control device for an electric fire pump. Background Technology

[0002] Electric fire pumps are widely used water supply devices in mid- to high-rise buildings such as hospitals, shopping malls, office buildings, and residential buildings. In the event of an accidental fire, starting the fire pump ensures that the water pressure in the pipe network meets the requirements of the fire extinguishing system, allowing the fire to be extinguished promptly. Fire pump control equipment is designed to control and monitor electric fire pumps, meeting the requirements described in fire pump control equipment standards. These devices are typically installed in fire pump rooms to monitor the operating status of the fire pumps, enabling automatic activation of the fire pumps based on signals from pressure switches or flow switches in the event of a fire; or manual activation via on-site or remote operation.

[0003] CN219733656U provides a fire pump control device that evolves from a traditional, arbitrarily customized fire pump control device into a standardized one. It upgrades the components inside the control cabinet and incorporates intelligent operation methods, making the fire pump control device more user-friendly, intelligent, and significantly improving its safety and reliability, thus maximizing fire safety.

[0004] As intelligence levels increase, control devices need to perform more and more functions, thus requiring frequent program upgrades. However, traditional program burning methods often require expensive emulators, which brings great difficulties to the maintenance and upgrading of the equipment.

[0005] In order to solve the above problems, people have been seeking an ideal technological solution. Summary of the Invention

[0006] The purpose of this invention is to address the shortcomings of existing technologies by providing an intelligent control device for electric fire pumps.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is: an intelligent control device for an electric fire pump, including a central processing unit module, a pipeline pressure acquisition circuit, and a relay switch circuit, wherein the relay switch circuit is connected to the fire pump; it also includes: a communication module and a one-click download module;

[0008] The one-click download module is connected to the central processing unit and is used to send a one-click download command to the central processing unit;

[0009] The central processing unit module enters download mode to update the program according to the one-click download command;

[0010] The communication module is connected to the central processing unit module and is used to send the upgrade program issued by the host computer to the central processing unit module.

[0011] In specific implementation, the one-click download module includes a one-click download button switch, a first resistor voltage divider circuit, a second resistor voltage divider circuit, and an RC filter circuit. The one-click download button switch is connected to the download pin of the central processing unit module through the first resistor voltage divider circuit and the RC filter circuit, and is connected to the BOOT pin of the central processing unit module through the second resistor voltage divider circuit. It is used to input download switching instructions and BOOT instructions to the central processing unit module respectively when the button switch is pressed.

[0012] In specific implementation, the intelligent control device for the electric fire pump also includes a running button module, which includes three button circuits, each of which includes a button switch, a first resistor voltage divider circuit, and an RC filter circuit.

[0013] One of the button circuits serves as a manual activation circuit, used to input a manual activation command to the central processing unit module when the button switch is pressed.

[0014] One button circuit serves as a manual stop circuit, used to input a manual stop command to the central processing unit module when the button switch is pressed;

[0015] One button circuit serves as an automatic operation switching circuit, used to input an automatic operation command to the central processing unit module when the button switch is pressed.

[0016] In practical implementation, the intelligent control device for the electric fire pump is used to input a programmable input circuit for the start and stop pressure thresholds to the central processing unit module. The programmable input circuit includes a transient suppression diode, a diode, a resistor voltage divider circuit, and an RC filter circuit. One end of the transient suppression diode is grounded, and the other end is connected to the input terminal of the programmable input circuit. The input terminal of the programmable input circuit is also connected to the cathode of the diode. The anode of the diode is connected to the programmable input pin of the central processing unit module through the resistor voltage divider circuit and the RC filter circuit. The anode of the diode and the resistor voltage divider circuit are also connected to the power supply voltage through a pull-up resistor.

[0017] This invention represents a substantial advancement over existing technologies. Specifically, the intelligent control device for electric fire pumps described herein features a one-button download function to control the central processing unit (CPU) to switch between operating and download modes. In practical use, the button module sends a one-button download command to the CPU, causing it to switch from operating mode to download and upgrade mode for program download and upgrade. Program upgrades are convenient. The intelligent control device also allows for manual and automatic start / stop of the electric fire pump via the button. Furthermore, the device includes a display module to show information obtained from the host computer. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the principle of this utility model.

[0019] Figure 2 This is a circuit diagram of the central processing unit module of this utility model.

[0020] Figure 3 This is a circuit diagram of the operation button module and the one-click download module of this utility model.

[0021] Figure 4 This is a circuit diagram of the programmable input module of this utility model.

[0022] Figure 5 This is a circuit diagram of the pipeline pressure acquisition circuit of this utility model.

[0023] Figure 6 This is a circuit diagram of the relay switch circuit of this utility model. Detailed Implementation

[0024] The technical solution of this utility model will be further described in detail below through specific embodiments.

[0025] Example 1

[0026] This embodiment provides an intelligent control device for an electric fire pump. Specifically, as shown below... Figure 1 As shown, the intelligent control device for the electric fire pump includes: a central processing unit module, a pipeline pressure acquisition circuit, a relay switch circuit, a communication module, and a one-click download module;

[0027] The pipeline pressure acquisition circuit is used to acquire pressure data of the fire protection pipeline network;

[0028] The relay switch circuit is connected to the fire pump;

[0029] The central processing unit module is connected to the pipeline pressure acquisition circuit and the relay switch circuit, and is used to control the switching action of the relay switch circuit according to the acquired pressure data of the fire pipeline network, so as to control the start and stop of the fire pump.

[0030] The one-click download module is connected to the central processing unit and is used to send a one-click download command to the central processing unit;

[0031] The central processing unit module enters download mode to update the program according to the one-click download command;

[0032] The communication module is connected to the central processing unit module and is used to send the upgrade program issued by the host computer to the central processing unit module.

[0033] In specific implementation, such as Figure 3 As shown, the one-click download module includes a one-click download button switch, a first resistor voltage divider circuit, a second resistor voltage divider circuit, and an RC filter circuit. The one-click download button switch is connected to the download pin of the central processing unit module through the first resistor voltage divider circuit and the RC filter circuit, and is connected to the BOOT pin of the central processing unit module through the second resistor voltage divider circuit. It is used to input download switching instructions and BOOT instructions to the central processing unit module respectively when the button switch is pressed.

[0034] When a program upgrade is required, press the button switch of the one-click download module. After receiving the one-click download command and the BOOT command, the central processing unit module switches from the running mode to the download and upgrade mode to download and upgrade the program, making program upgrades convenient.

[0035] In specific implementation, such as Figure 3 As shown, the intelligent control device for the electric fire pump also includes a running button module, which includes three button circuits. Each button circuit includes a button switch, a first resistor voltage divider circuit, and an RC filter circuit.

[0036] One of the button circuits serves as a manual activation circuit, used to input a manual activation command to the central processing unit module when the button switch is pressed.

[0037] One button circuit serves as a manual stop circuit, used to input a manual stop command to the central processing unit module when the button switch is pressed;

[0038] One button circuit serves as an automatic operation switching circuit, used to input an automatic operation command to the central processing unit module when the button switch is pressed.

[0039] Specifically, when the button switch for manually starting the circuit is pressed, the central processing unit module receives a manual start command and controls the electric fire pump to start through the relay switch circuit.

[0040] When the manual stop circuit button switch is pressed, the central processing unit module receives a manual stop command and controls the electric fire pump to stop through the relay switch circuit.

[0041] When the button switch for the automatic operation switching circuit is pressed, the central processing unit module receives the automatic operation command. Based on the collected pressure data of the fire pipeline network and the preset start and stop thresholds, it controls the switching action of the relay switch circuit to control the start and stop of the fire pump.

[0042] Furthermore, the start-stop pressure threshold can be set via a host computer or on-site. Therefore, the intelligent control device for the electric fire pump also includes a programmable input circuit. This programmable input circuit includes a transient suppression diode, a diode, a resistor divider circuit, and an RC filter circuit. One end of the transient suppression diode is grounded, and the other end is connected to the input terminal of the programmable input circuit. The input terminal of the programmable input circuit is also connected to the cathode of the diode. The anode of the diode is connected to the programmable input pin of the central processing unit module through the resistor divider circuit and the RC filter circuit. A pull-up resistor connects the diode anode and the resistor divider circuit to the power supply voltage. In use, the start-stop pressure threshold is input to the central processing unit module through the programmable input circuit.

[0043] In practical implementation, the intelligent control device for the electric fire pump also includes a power supply module, a display module, and a status indication module. The display module and the status indication module are respectively connected to the central processing unit module for information display and status indication. The power supply module is used to power the device.

[0044] Specifically, the communication module includes a LINK port. In actual operation, the communication module is also used to upload the collected pipeline pressure to the host computer, and to send configuration information, statistical information, and alarm information issued by the host computer to the central processing unit module.

[0045] In addition, the central processing unit module reconfigures its relevant parameter values ​​according to the configuration information, and displays the pressure data of the fire protection network, the start / stop status of the electric fire pump, and the configuration information, statistical information, and alarm information issued by the host computer through the display module; and indicates the working status and alarm information of the intelligent control device for the electric fire pump through the status indication module. Specifically, the statistical information may include the three-phase four-wire / single-phase two-wire AC voltage of the dual power controller, alarm information, cumulative pump operation information, and the number of pump starts.

[0046] Example 2

[0047] The difference between this embodiment and Embodiment 1 is that it provides a specific embodiment of the intelligent control device for the electric fire pump, as detailed below. Figure 2-6 As shown.

[0048] like Figure 2 The diagram shown is a circuit diagram of the central processing unit module.

[0049] like Figure 3 The diagram shows the circuit diagrams for the operation button module and the one-click download module.

[0050] The first button circuit of the operation button module includes a manual on / off button switch S1, resistors R61 and R63, and capacitor C32. One end of resistor R61 is connected to the manual on / off button switch S1, and the other end is grounded through resistor R63. The connection point of resistors R61 and R63 is also connected in parallel with capacitor C32. Resistors R61 and R63 form a resistor voltage divider circuit, and resistor R61 and capacitor C32 form an RC filter circuit. Furthermore, the connection point of resistors R61 and R63 is also connected to the START_Key_In of the central processing unit module, which is used to input a manual on / off command to the central processing unit module when the manual on / off button switch S1 is pressed.

[0051] The second button circuit of the operation button module includes a manual stop button switch S2, resistors R65 and R67, and capacitor C33. One end of resistor R65 is connected to the manual stop button switch S2, and the other end is grounded through resistor R67. The connection point of resistors R65 and R63 is also connected in parallel with capacitor C32. Resistor R65 and R67 form a resistor voltage divider circuit, and resistor R65 and capacitor C32 form an RC filter circuit. Furthermore, the connection point of resistors R65 and R67 is also connected to the STOP_Key_In of the central processing unit module, which is used to input a manual stop command to the central processing unit module when the manual stop button switch S2 is pressed.

[0052] The third button circuit of the operation button module includes an automatic operation button switch S3, resistors R69 and R70, and capacitor C34. One end of resistor R69 is connected to the automatic operation button switch S3, and the other end is grounded through resistor R70. The connection point of resistors R69 and R70 is also connected in parallel with capacitor C34. Resistors R69 and R63 form a resistor voltage divider circuit, and resistor R69 and capacitor C34 form an RC filter circuit. Furthermore, the connection point of resistors R69 and R70 is also connected to the AUTO_Key_In of the central processing unit module, which is used to input an automatic operation command to the central processing unit module when the automatic operation button switch S3 is pressed.

[0053] The one-click download module includes a one-click download button switch S4, resistors R71 and R73, and capacitor C35. One end of resistor R71 is connected to the one-click download button switch S4, and the other end is grounded through resistor R73. A capacitor C32 is connected in parallel to the connection point of resistors R71 and R73. Resistors R71 and R63 form a resistor divider circuit, and resistor R171 and capacitor C32 form an RC filter circuit. Furthermore, the connection point of resistors R71 and R73 is also connected to the ATART_Key_In pin of the central processing unit (CPU) module, used to input a one-click download command to the CPU module when the one-click download button switch S4 is pressed. Furthermore, the one-click download button switch S4 is also connected to the BOOT pin of the CPU module through a resistor divider circuit composed of resistors R72 and R74 to output a BOOT command to the CPU module.

[0054] like Figure 4 The diagram shown is a schematic of a programmable input circuit.

[0055] The programmable input circuit includes transient suppression diodes D10 and D8, resistors R58, R59, and R75, and capacitor C52. One end of the transient suppression diode D10 is grounded, and the other end is connected to the input terminal of the programmable input circuit. The input terminal of the programmable input circuit is also connected to the cathode of diode D8. The anode of diode D8 is connected to the programmable input pin IN1 of the central processing unit module through a voltage divider and filter circuit composed of resistors R59, R75, and capacitor C52, inputting the start-up pressure threshold or stop-down pressure threshold to the central processing unit module. A 5.0V power supply voltage is also connected between the anode of diode D8 and resistor R59 through a pull-up resistor R58.

[0056] It is understandable that the circuitry of the other programmable input circuit is the same as... Figure 3 Similarly, no further specific information will be provided here.

[0057] like Figure 5 As shown, the pipeline pressure acquisition circuit includes a PRESSLRE SENSOR sensor signal input terminal, a first control branch, a second control branch, a sampling resistor R78, and a third control branch. The reference voltage VDDA is connected to the sensor signal input terminal in sequence through a first switching transistor Q4, a diode D6, a first voltage divider resistor R60, and a second voltage divider resistor R77. The connection point between the second voltage divider resistor R77 and the sensor signal input terminal is grounded through a filter capacitor C54. It can be understood that the PRESSLRE SENSOR sensor signal input terminal is also equipped with a transient voltage suppression diode TVS D14 to suppress transient voltage surges.

[0058] The first control branch includes a first control terminal PS TS O1 and a first resistor R56. The first control terminal PS TS O1 is connected to the base of the first switching transistor Q4 through the first resistor R56.

[0059] The second control branch includes a second control terminal PS TS O1, a second resistor R57, and a second switch Q5. The second control terminal PS TS O1 is connected to the base of the second switch Q5 through the second resistor R57. The collector of the second switch Q5 is connected to the connection point of the first voltage divider resistor R60 and the second voltage divider resistor R77.

[0060] The third control branch includes a third control terminal PS TSO3 and a third resistor R83. The third control terminal PS TSO3 is connected to one end of the sampling resistor R78 through the third resistor R83. The other end of the sampling resistor R78 is also connected to the sensor signal input terminal PRESSLRE SENSOR.

[0061] The connection point of diode D6 and the first voltage divider resistor R60 is connected to the first output terminal after passing through an RC filter circuit composed of resistor R57 and capacitor C50, and is connected to PS_ACDIN1 of the central processing unit.

[0062] The connection point between the third resistor R83 and the sampling resistor R78 is connected to the second output terminal via an RC filter circuit composed of resistor R79 and capacitor C53, which is then connected to the PS_ACDIN2 of the central processing unit.

[0063] It is understood that the first output terminal is also provided with a diode clamping protection circuit composed of diodes D7 and D9; the second output terminal is also provided with a diode clamping protection circuit composed of diodes D11 and D13.

[0064] When the Vin1 voltage is greater than VCC, diode D34 is obviously turned on and diode D37 is turned off. The voltage PSInl output by the first signal output terminal is equal to VCC + 0.7V.

[0065] When the Vin1 voltage is between VCC and GND, both diodes D37 and D34 are turned off, and the output voltage Vout is equal to Vin1; when the Vin1 voltage is less than GND, then diode D37 is turned on, diode D34 is turned off, and the output voltage PSInl of the first signal output terminal is equal to GND-0.7V.

[0066] Therefore, regardless of the external input voltage Vin1, the voltage PS Inl output from the first signal output terminal is always clamped and limited between VCC+0.7 and GND-0.7, thus protecting the downstream processor from overvoltage damage. Preferably, VCC is 3.3V.

[0067] Similarly, the second output branch includes a second resistor R105, a capacitor C51, and a diode clamping protection circuit composed of diodes D39 and D41. The diode clamping protection circuit is used to protect the downstream processor from overvoltage damage.

[0068] Specifically, the third control branch includes a third control terminal PS TS O3 and a pull-up resistor R108. The third control terminal PS TS O3 is connected to the connection point between the sampling resistor R104 and the second output branch through the pull-up resistor R108, that is, connected to the fourth resistor R105.

[0069] The working principle is as follows: the first control terminal PS TS O1 is controlled to be at a high level, the second control terminal PS TS O12 outputs a high level, and then the third control terminal PS TS O3 is controlled to be at a low level. The current flows to the low level through the pull-up resistor R83 and the sampling resistor R78. At this time, the central processing unit module calculates the output voltage value of the pressure sensor by acquiring the data value of the second output terminal PS_ACDIN2.

[0070] like Figure 6 As shown, the relay switching circuit includes a transistor Q3 and a relay. The control output port PUMPOUT of the central processing unit module is connected to the base of transistor Q3 through a voltage divider circuit composed of resistors R17 and R18. The 5.0V power supply is connected to the collector of transistor Q3 through the energizing coil of the relay. A diode D2 is also connected in reverse parallel across the energizing coil of the relay. The contact switch K2 of the relay is connected in series in the control circuit of the electric fire pump.

[0071] Specifically, when the control output port PUMPOUT of the central processing unit module outputs a low level, the transistor Q3 is turned on, the relay's energizing coil is activated, and the relay's contact switch K2 is closed to control the electric fire pump to start working; when the control output port PUMPOUT of the central processing unit module outputs a high level, the transistor Q3 is turned off, the relay's energizing coil is de-energized, and the relay's contact switch K2 is opened to control the electric fire pump to stop working.

[0072] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it; although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of this utility model or equivalent substitutions can be made to some technical features without departing from the spirit of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the technical solution claimed by this utility model.

Claims

1. An intelligent control device for an electric fire pump, comprising a central processor module, a pipe network pressure acquisition circuit, and a relay switch circuit connected to the fire pump; characterized in that Further comprising: a communication module and a one-key download module; the one-key download module is connected to the central processor and is configured to send a one-key download instruction to the central processor; the central processor module enters a download mode to update a program according to the one-key download instruction; the communication module is connected to the central processor module and is configured to send an upgrade program issued by an upper computer to the central processor module.

2. The intelligent control device for electric fire pump according to claim 1, characterized in that: the one-key download module comprises a one-key download key switch, a first resistance voltage dividing circuit, a second resistance voltage dividing circuit, and an RC filter circuit, wherein the one-key download key switch is connected to a download pin of the central processor module through the first resistance voltage dividing circuit and the RC filter circuit, is connected to a BOOT pin of the central processor module through the second resistance voltage dividing circuit, and is configured to input a download switching instruction and a BOOT instruction to the central processor module when the key switch is pressed.

3. The intelligent control device for electric fire pump according to claim 1 or 2, characterized in that: Further comprising a running key module, the running key module comprises three key circuits, and each key circuit comprises a key switch, a first resistance voltage dividing circuit, and an RC filter circuit; one key circuit is used as a manual start circuit and is configured to input a manual start instruction to the central processor module when the key switch is pressed; one key circuit is used as a manual stop circuit and is configured to input a manual stop instruction to the central processor module when the key switch is pressed; one key circuit is used as an automatic running switching circuit and is configured to input an automatic running instruction to the central processor module when the key switch is pressed.

4. The intelligent control device for electric fire pump according to claim 3, characterized in that: Further comprising a programmable input circuit configured to input an enable-stop pressure threshold to the central processor module, the programmable input circuit comprises a transient voltage suppression diode, a diode, a resistance voltage dividing circuit, and an RC filter circuit, one end of the transient voltage suppression diode is grounded, the other end of the transient voltage suppression diode is connected to an input end of the programmable input circuit, the input end of the programmable input circuit is also connected to a cathode of the diode, an anode of the diode is connected to a programmable input pin of the central processor module through the resistance voltage dividing circuit and the RC filter circuit, and the anode of the diode and the resistance voltage dividing circuit are also connected to a power supply voltage through a pull-up resistor.

5. The intelligent control device for electric fire pump of claim 1 or 2 or 4, characterized in that: the pipe network pressure acquisition circuit comprises a sensor signal input end, a first control branch, a second control branch, a sampling resistor, and a third control branch, a reference voltage is connected to the sensor signal input end through a first switch tube, a diode, a first voltage dividing resistor, and a second voltage dividing resistor in sequence, and a connection point of the second voltage dividing resistor and the sensor signal input end is grounded through a filter capacitor; the first control branch is connected to a control end of the first switch tube, and the second control branch is connected to a connection point of the first voltage dividing resistor and the second voltage dividing resistor; a connection point of the diode and the first voltage dividing resistor is connected to a first output end in series with a first resistor, and a connection point of the second voltage dividing resistor and the filter capacitor is connected to a second output end in series with a second resistor; The sampling resistor is connected in series between the connection point of the sensor signal input and the second output branch, and the third control branch is connected to the connection point of the sampling resistor and the second output branch.

6. The intelligent control device for electric fire pump of claim 5, wherein: The relay switch circuit comprises a transistor and a relay, a control output port of the central processor module is connected to the base of the transistor through a resistance voltage dividing circuit, a power supply is connected to the collector of the transistor through the energizing coil of the relay, two ends of the energizing coil of the relay are reversely connected in parallel with a diode, and the contact switch of the relay is connected in series in the control circuit of the electric fire pump.

7. The intelligent control device for electric fire pump of claim 6, wherein: The device further comprises a power module, a display module and a state indication module, the display module and the state indication module are connected with the central processor module respectively for information display and state indication, and the power module is used for realizing power supply of the device.

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