CN105045193A - Operation record controller for black box of electrical equipment - Google Patents

Abstract

The invention discloses an operation record controller for a black box of electrical equipment, and the controller comprises a structure and a circuit. The structure comprises a recorder case, a circuit board in the recorder case, and an input/output interface of a circuit board module. The controller has the following advantages that 1, the controller supports the serial port and network communication, and is suitable for various types of working environments; 2, the controller supports a micro SD storage card with the capacity of 128G or greater, and the SD card can achieve hot swapping, i.e., plug and use; 3, the controller employs two SD cards to storage data, and automatically synchronizes the data of the SD cards; 4, input, output and communication are completely isolated and connected, thereby effectively protecting the safety of the equipment; 5, digital signal and analog signal ground lines are separated, thereby preventing a digital value and an analog value to interfere with each other; 6, a low-pass filter is employed for analog collection input, thereby improving the performance of interference resistance, and improving the collection precision; 7, the controller can be flexibly switched between an automatic control mode and a manual control mode; 8, the controller can set automatic inspection and automatic alarm.

Description

A kind of electrical equipment black box logout controller

Technical field

The present invention relates to electrical equipment black box logout controller, have and the invention discloses electrical equipment black box logout controller, log data has tight anti-tamper, anti-delete function, is called the black box that electric equipment operation controls and records.

Background technology

Along with making rapid progress of science and technology, the fast development of sensor industry, in field of electrical control, as: add pressure transducer in living pump, Firefighting Pump Control cabinet, i.e. the birth of electronic pressure controller, rake in market accreditation with the advantage of its uniqueness.Add sensor probe sensed pressure in the controls, in control circuit, use singlechip technology to realize multinomial intelligent control function.A kind of various pump classes, motor, blower fan, fire extinguishing pump equal controller being widely used in the middle-high building things such as hospital, market, factory, office building and residential building community.

As: fire pump, when unexpected breaking out of fire, need start fire extinguishing pump and can ensure that the hydraulic pressure in pipe network reaches the requirement of fire-fighting, fire is puted out a fire to save life and property timely.Be generally in power fire extinguishing pump water system adopt (or multiple) primary pump to arrange in pairs or groups the pattern of (or multiple) stand-by pump at the fixed motor of China, and be equipped with special switch board to realize the control to fire extinguishing pump.The startup of fire extinguishing pump and stopping, traditional Fire Fighting Pump Control cabinet is generally realized by auxiliary reclay multiple in secondary line and the time relay, the shortcomings such as this control mode component number is many, wiring is complicated, poor universality, very large difficulty is brought to the maintenance of equipment and upgrading, and there is no logout function, more there is no black box logout, not there is tight anti-tamper, anti-deletion log data function.

Along with fire-fighting system is to the improve of fire extinguishing pump control overflow, there are some switch board production firms in the market according to the demand of client, have developed with dual power supply handoff functionality, the switch board of the functions such as fire extinguishing pump automatic inspection function and Long-distance Control, substantially increase reliability and the automaticity of the Control System of Fire Pump, but the control of these newly-increased functional modules and fire extinguishing pump is separate, just simply integrated in two systemic-functions, and a lot of switch board is all that each functional module is provided by different manufacturers, thus cause these system maintenances and upgrade very difficult, cost is relative also higher.

Summary of the invention

The object of the present invention is to provide have run control, control register that automatic detecting, Long-distance Control, condition monitoring, anti-tamper, anti-deletion logout are integrated, to solve the problem proposed in above-mentioned background technology.

For achieving the above object, the invention provides following technical scheme:

A kind of electrical equipment black box logout controller, comprises structure and circuit, and described structure comprises the IO interface of wiring board in registering instrument casing, housing and wiring board module.

As preferred version of the present invention: described circuit comprises STM32 circuit system, input and output I/O module, direct supply filtering and mu balanced circuit, input expander, digital quantity isolation Acquisition Circuit, analog quantity acquisition circuit, out-expander, relay and driving circuit, button and liquid crystal display drive circuit, driving circuit for status display lamp, 485 telecommunication circuits, network communications circuits and SD cartoon letters circuit.

As preferred version of the present invention: described circuit also comprises state load module, gear load module, sensor detection module, alarm output module, analog quantity control module, 485 communication modules and ethernet communication module.

Compared with prior art, the invention has the beneficial effects as follows:

1. the present invention supports serial ports and network service, is applicable to multiple different working environment;

2. support 128G with or the storage of larger microSD card, and SD card can Hot insertion hot swapping, plug and play;

3. adopt two SD card data to store, automatic synchronization SD card data;

4. input, export and communicate and entirely isolate connection, the safety of available protecting equipment;

5. digital signal is separated with simulating signal ground wire, prevent digital quantity and analog quantity interfering with each other;

6. analog acquisition input adopts low-pass filter, strengthens interference free performance, improves acquisition precision;

7. automatic, MANUAL CONTROL mode may be set flexibly;

8. the present invention can arrange automatic detecting, automatic alarm;

9. have service data record autostore, data are automatically encrypted and are had anti-anti-tamper function.

Accompanying drawing explanation

Fig. 1 is structured flowchart of the present invention;

Fig. 2 is the circuit diagram of main controller module;

Fig. 3 is the circuit diagram of state load module;

Fig. 4 is the circuit diagram of gear load module;

Fig. 5 is the circuit diagram of sensor detection module;

Fig. 6 is the circuit diagram of button and LCD MODULE;

Fig. 7 is the circuit diagram of analog quantity control module;

Fig. 8 is the circuit diagram of alarm output module;

Fig. 9 is the circuit diagram of ethernet communication module;

Figure 10 is the circuit diagram of 485 communication modules;

Figure 11 is the circuit diagram of real-time time module;

Figure 12 is the circuit diagram of SD card module;

Figure 13 is the circuit diagram of power module;

Figure 14 is the cut-away view of master controller.

Embodiment

Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.

Refer to Fig. 1-13, a kind of electrical equipment black box logout controller, comprises structure and circuit, and described structure comprises the IO interface of wiring board in registering instrument casing, housing and wiring board module.

Circuit comprises STM32 circuit system, input and output I/O module, direct supply filtering and mu balanced circuit, input expander, digital quantity isolation Acquisition Circuit, analog quantity acquisition circuit, out-expander, relay and driving circuit, button and liquid crystal display drive circuit, driving circuit for status display lamp, 485 telecommunication circuits, network communications circuits and SD cartoon letters circuit.

Circuit also comprises state load module, gear load module, sensor detection module, alarm output module, analog quantity control module, 485 communication modules and ethernet communication module.

Principle of work of the present invention is: direct current+24V is powered to power module by power input terminal, Analog control lead-out terminal is connected in series to the ac contactor coil side of pump, simultaneously a button in parallel at COM and the NC two ends of lead-out terminal as mechanical button, mechanical button is in particular cases using (when cannot run because a variety of causes causes damaging as controller), the feedback signal of pump is connected to state output terminal, hydraulic pressure sensor and temperature sensor are linked into sensor input, the driving switch that one comprises three gears is connected at driving switch input terminal place, manual operation button is linked into hand push button input terminal, 485 connections and access 485 communication interface terminals, network communication line is connected to ethernet interface by RJ45 joint, SD card is then inserted into SD card interface.After (following is control procedure and method of operating) power module powers on, when turning on the power switch, each module of equipment starts normal work.If when now driving switch rotates to automatic transmission, equipment is in Automatic Control state, preferentially stand-by pump for subsequent use can be started when equipment Inspection is on the low side to hydraulic pressure sensor numerical value, if hydraulic pressure still can not be made to be gone up, and hydraulic pressure starts powerful fire extinguishing pump after still continuing to be reduced to minimum spacing setting value carries out supplementary hydraulic pressure, meanwhile, equipment exports alarm signal and is recorded as anomalous event and is stored in SD card, alerting signal manually can only eliminate alarm, automatically can stop high-power analog controlling device (as fire extinguishing pump) after analog quantity arrives appointment pressure.When analog quantity is normal, the automatic inspection function of setting comes into force, automatic inspection function be start by set date analog controlling device and the feedback detecting analog controlling device with or without abnormal conditions, if having abnormal, give the alarm (explanation automatic detecting).User can by the button on equipment, and according to liquid crystal tip, carrying out, automatic detecting is set, spacing, Time of Day of reporting to the police.If driving switch rotates to time manual, automatic inspection function lost efficacy, the control initiative that now equipment release exports, by operation and the stopping of all output of manual control.When manual, other modules of equipment normally run the running status and analog quantity state, register system Operation Log and anomalous event, warning output etc. that input as read.If when driving switch rotates to lock catch, the output control function of equipment is in dormant state, equipment authority is only limitted to read the running status of input and analog quantity state, register system Operation Log and anomalous event and warning export.

Module illustrates

1. master controller

Master controller is the terminal of all load modules and the starting point of output module, is the central processing unit of equipment.The information of collecting each load module is responsible for by master controller, and carry out processing and judging according to collected information, then makes corresponding action to other modules.As judged sensor environment according to sensor load module information whether in normal range; Judge whether system cloud gray model has abnormal and whether start powerful pattern according to state load module information; According to the pattern of the work of gear load module information switching device; According to the input information of button and LCD MODULE lattice lcd shielded and make corresponding display translation, as system state inquiry, Operation system setting adjustment and log information backup etc.As shown in Figure 2, Y1 quartz crystal oscillator, for system provides clock.

2. state load module

State load module is that master controller judges the whether normal Main Basis of system cloud gray model.When there being run signal to be input to module, then running LED is lit, otherwise extinguishes.When there being alarm signal to be input to module, then alerting signal warning horn action, otherwise attonity.As shown in Figure 3, INERR and IN11 end is feedback signal access point, when INERR rectifies Chang Shiwei+24V, 1 pin and 2 pin of U1 are high level, 3 pin of U1 and 4 pin not conductings, therefore controller IO pin PE15 is high level, when INERR holds saltus step to be low level, 2 pin of U1 are dragged down as low level, now 3 pin of U1 and 4 pin conductings, drag down as low level by controller IO pin PE15, wherein U1 is optocoupler.

3. gear load module

Gear load module is the bridge of driving switch and controller, and gear module comprises automatically, manually, stop the input of 3 gears, only has can come into force by gear at synchronization.Its circuit theory and state load module basic, the 4 pin output terminals unlike optocoupler arrive controller IO pin again by input expanding chip, input expansion module as shown in Figure 4, P0 ~ P7 in U55 is may be read into by the Q7 pin in U55, U55 and U56 have employed the mode of cascade, therefore, namely be may be read into the data of the P0 ~ P7 of U55 and U56 by the Q7 pin of U55.

4. sensor detection module

Sensor assembly is used for the data acquisition of analog quantity or digital sensors, as hydraulic pressure sensor, temperature sensor, humidity sensor etc.This module transfers to controller collection after the data of sensor are carried out single treatment.As shown in Figure 5, sensor signal is inputted by J47, J48, J49, and AD0 signal is sent to U61 operational amplifier and amplifies after R198, R203 and C62 filtering, and then outputs to controller IO pin and gather, U60 is fiducial chip, as controlling the reference point weighing sensor signal.

5. button and LCD MODULE

Button and LCD MODULE are used for the medium of man-machine interaction, and user according to the situation of liquid crystal display, can be operated by button accordingly.

6. analog quantity control module

Analog quantity control module is analog controlling device interface, adopts the relay way of output to realize the high-power and low power analog controlling device of compatible control, the duty of controller by driving the folding of relay to carry out control simulation amount control device.As shown in Figure 7, controller carries out the 2 pin level states of control U25, when 2 pin of U25 are high level by U65,3, the 4 pin not conductings of U25, therefore K1 is failure to actuate, when 2 pin of U25 are low level, 3, the 4 pin conductings of U25, make K1 action (illustrate and run control procedure).

7. alarm output module

Alarm output module mainly represents the generation to custom system abnormal condition, and causes the concern of user.Comprise audible alarm, light is reported to the police and external alarm equipment alarm.As shown in Figure 8, PD3 is an IO pin of controller, and when PD3 is low level, Q1 is in cut-off state, and now hummer LS1 is quiet, and when PD3 is high level, Q1 saturation conduction, orders about hummer LS1 and sound.

8. ethernet communication module

Ethernet communication module is a kind of mode of carrying out with external device communicating, and Content of Communication comprises system state inquiry, the change of Operation system setting and Long-distance Control and exports.

9.485 communication module

485 communication modules are also a kind of modes of carrying out with external device communicating, and which is more suitable for telecommunication, and its Content of Communication comprises system state inquiry, the change of Operation system setting and Long-distance Control and exports.As shown in Figure 10, U54 is DC-DC insulating power supply, and be supplied to 485 chip operations after system power supply being isolated, U51 ~ U53 is optocoupler, for the isolation communication of controller and 485 inter-chip signals lines.

10. real-time clock module

Real-time time module Main Function comprises to be provided timetable for user and provides basis of time for the every log recording of system.

11.SD card module

SD card module is to provide two SD card slot, and all daily records of system are all stored on SD card, and data are automatically encrypted and had anti-tamper function.

12. power modules

Power module provides stable power supply for other all modules, is the working foundation of other modules.Power module comprises+24V ,+5V and+3.3V.As shown in figure 13; external dc+24V is inputted by J41; KG1 is toggle switch; D2 can play anti-reverse protective effect; T1 is common mode inhibition inductance; + the 24V of input is divided into two-way after filtering afterwards, and wherein a road is directly supplied to relay, and another road recycles U64 after being then depressurized to+5V by U62 and is depressurized to+3.3V.

13. circuit theory diagrams

Circuit theory diagrams are as shown in Fig. 2 ~ 13, and in circuit, U1 ~ U53 is photoelectrical coupler.In present case, photoelectrical coupler adopts P817C and P627C.P627C is the device drives for exporting, and remaining is all as the isolation collection of input, and the single-chip microcomputer that can realize 3.3V collects 24V digital signal.

U55, U56 are 8 bit parallel incoming serial Output Shift Registers.In present case, be 74HC165 chip, adopt the mode of cascade in circuit, what be combined into 16 parallelly turns the input expanding of serial shift register as 16 tunnels.

U65 it be 8 bit serial input parallel outputs think register.In present case, be 74HC595 chip, can be applicable in circuit export expansion.J44 is the interface that button and lattice lcd shield.

SD1, SD2 are microSD deck, the maximum SD card can supporting 128G, adopt the structure of two SD card in the present invention, a SD card is as primary memory, non-removable, and another SD card is then as the storer of backup with copy, support hot plug operations, the content of primary memory can be copied.U63 is a kind of clock chip, and its inside carries reserve battery, can maintain ten years in theory normally to run.

U61 is operational amplifier, sends single-chip microcomputer to after the analog quantity of sensor being amplified.U60 is the fiducial chip that AD gathers, and the AD for single-chip microcomputer gathers and provides high precision, stable reference voltage.

J41 is that direct supply 24V inputs, and D2 can play and prevent reverse power connection and the effect of burning element, and C78, C79, T1 form common mode rejection circuit.

Embodiments of the invention 1: the control being applied to fire extinguishing pump, comprise master controller, state load module, gear load module, sensor detection module, button and LCD MODULE, analog quantity control module, alarm output module, ethernet communication module, 485 communication modules, real-time time module, SD card module and power module.

Master controller: master controller, as equipment control core, realizes the connection between modules and control;

State load module: the operation of real-time testing pump and halted state;

Gear load module: detect the range state that active user is arranged;

Sensor detection module: analog quantity or digital sensors measure input interface;

Button and LCD MODULE: human-computer interaction interface realizes;

Analog quantity control module: the state realizing the system of fire protection pipeline maintains within the scope of normal demand;

Alarm output module: give the alarm when system makes a mistake;

Ethernet communication module: realize the communication based on Ethernet;

485 communication modules: realize 485 network services;

Real-time time module: for equipment provides RTC clock service;

SD card module: the operation of memory device and system cloud gray model daily record;

Power module: input 24V direct supply, exports 24V, 5V and 3.3V.

Claims (3)

1. an electrical equipment black box logout controller, is characterized in that, comprises structure and circuit, and described structure comprises the IO interface of wiring board in registering instrument casing, housing and wiring board module.

2. a kind of electrical equipment black box logout controller according to claim 1, it is characterized in that, described circuit comprises STM32 circuit system, input and output I/O module, direct supply filtering and mu balanced circuit, input expander, digital quantity isolation Acquisition Circuit, analog quantity acquisition circuit, out-expander, relay and driving circuit, button and liquid crystal display drive circuit, driving circuit for status display lamp, 485 telecommunication circuits, network communications circuits and SD cartoon letters circuit.

3. a kind of electrical equipment black box logout controller according to claim 1, it is characterized in that, described circuit also comprises state load module, gear load module, sensor detection module, alarm output module, analog quantity control module, 485 communication modules and ethernet communication module.