CN2306531Y - Running state recorder for environmental protection equipment - Google Patents

Abstract

The utility model relates to a running state recorder for environmental protection equipment. The utility model is characterized in that data wires and address wires of a central processor are connected with a clock chip, and an input port of a counter which is arranged at the outer side of the processor is connected with a square wave output end of a clock. One input and output port and one address wire of the processor are connected with a chip selection end of the clock chip through a decoder. A middle fracture of the outer part of the processor is connected with an output of a voltage comparator. The data wires and the address wires of the processor are simultaneously connected with an A/D converter whose one input passage is connected with an output of a current sensor. A reading end and a writing end of the processor are connected with a control end of the A/D converter through an NOR. A serial input and a serial output ports of the processor are connected with corresponding serial ports of a PC through serial interfaces.

Description

Environmental protection equipment running status pen recorder

The utility model relates to a kind of pen recorder, particularly writes down the pen recorder of environmental protection equipment running status.

At present, the ruuning situation of many environmental protection of enterprise equipment is uncontrollable, just environmental protection equipment is opened when many enterprises just check in environmental administration, and a lot of times are not just removed to open environmental protection equipment for saving of labor's power saving at ordinary times, sewage or dirt are directly discharged, cause environmental pollution.Up to the present, environmental protection administrative authority does not have the management that exercises supervision of a kind of effective means yet.

The purpose of this utility model is exactly in order to address the above problem, and a kind of environmental protection equipment running status pen recorder of effectively supervision and management environmental protection of enterprise equipment is provided.

! Technical solution of the present utility model:

A kind of environmental protection equipment running status pen recorder, it includes by central processor CPU, latch IC ₁, program storage IC ₂, data-carrier store IC ₃The Single Chip Microcomputer (SCM) system of forming is characterized in that the data line of central processor CPU and address wire meet clock chip IC ₄, and the external counter input port T of CPU ₀Meet IC ₄Square wave output terminal SQW, the input/output port P of CPU _1.0With an address wire P _2.7By code translator IC ₅Meet clock chip IC ₄Sheet choosing end CS, at the external interrupt mouth INT of CPU ₀Connect voltage comparator ic ₆Output, the data line of CPU and address wire connect modulus converter A/D simultaneously, the input channel IN of A/D ₀Connect the output of current sensor G, the reading of CPU held RD and write end WR by rejection gate IC ₇The output that meets A/D allows control end OE and address latch control signal end ALE and start-up control input end START, and the serial input port RXD of CPU and serial delivery outlet TXD are by serial line interface IC ₈Connect the corresponding serial port of PC.

The utility model may be used in the environmental protection black box, can monitor storage environmental protection equipment running status at any time automatically, comprises peak power, minimum power and the average power of start-up time, braking time and the run duration of environmental protection equipment.The data of monitoring storage are sent in the PC with serial communication mode, carry out data processing and statistics, the relevant information of storing a plurality of black boxes with the form of database, and can with the moon form form show and export total on time of each monitored environmental protection equipment, total Homes Using TV, average operating power, average power consumption, average power can also form curve, statistics is come into plain view, can reflect the running status of environmental protection equipment comprehensively, in detail, intuitively.The utility model automaticity height; need not manual intervention; at any time monitor the running status of environmental protection equipment automatically; its record is directly perceived; the stored data chip capacity is big, and access speed is fast, and has power down protection; can monitor the running status of the environmental protection equipment of storage more than 1 year, data are not lost more than 10 years under no externally fed situation.The utility model adopts standard RS232 interface, can realize both-way communication with PC easily, and data access is convenient, and is quick reliable, can also carry out remote transmission in the future.The utility model is accurate writing time, and the non-maintaining time of clock, clock accuracy was+30 minutes/year greater than 10 years.The utility model anti-electromagnetic interference capability is strong, and it does not influence the normal operation of environmental protection equipment when using, and has very important social benefit and economic benefit.

Fig. 1 is an electrical schematic diagram of the present utility model.

As Fig. 1, in the utility model, latch IC ₁Can select model for use is the 74LS373 integrated package, program storage IC ₂Can select model for use is 2764 integrated packages, data-carrier store IC ₃The SRAM integrated package that can adopt the power down data not lose, clock chip IC ₄Can adopt model is the DS12887 integrated package, code translator IC ₅Can adopt the 74LS139 integrated package, serial line interface IC ₈Can adopt model is the MAX202CPE integrated package.Voltage comparator ic of the present utility model ₆The in-phase input end of (model can be LM324) is by potentiometer K welding system+5V power supply, and its inverting input connecting resistance R and stabilivolt DW are connected in series the mid point of branch road, the plus earth of DW, the other end welding system+5V power supply of resistance R.

The course of work of the present utility model is as follows, after complete machine is connected working power, and kind chip IC when central processor CPU is about to ₄On time signal at that time (year, month, day, hour, min) read and be stored in data-carrier store IC ₃In, CPU startup modulus converter A/D reads the induced signal that current sensor G sends here then, current sensor G is placed on the power lead of environmental protection consumer, it exports the working current induction of signal of environmental protection equipment to modulus converter A/D, A/D converts this current sensing signal to data-signal and delivers to CPU, CPU compares this current data signal and software set value, if this current data signal is positioned at range of set value, just think that environmental protection equipment is in normal operating conditions, at this moment CPU reads clock chip IC again ₄The time signal of this moment, and be stored in data-carrier store IC ₃In, this time is just as start-up time of environmental protection equipment.CPU constantly reads the induction current data on the A/D later on, and judges whether in range of set value.In case exceed range of set value, CPU is the recording clock chip IC again ₄Time signal at that time and be stored to IC ₃In, this time is again as the braking time of environmental protection equipment.During the start-up time and braking time of environmental protection equipment, CPU reads and stores faradic data at set intervals to data-carrier store IC ₃Buffer zone in, the record braking time after, CPU finds out faradic maximal value and minimum value under the in house software effect, and calculates mean value, is stored in IC then ₃In, repeat said process later on, till the pen recorder powered-down, promptly finish a course of work, this moment, CPU will write down this power-off time, because system power supply is cut off each circuit component power down of back a process, then comparator circuit IC will be arranged ₆The output low level of can overturning rapidly so CPU enters the interrupt response program, writes down and is stored in IC with this power-off time to the external interrupt input port INT0 of CPU ₃In.When system repeats the above-mentioned course of work again during energized again, so just the not same date of environmental protection equipment, the duty of different time all are recorded in the pen recorder.When will checking, environmental administration only needs the serial port of PC (as portable machine) is connected to serial line interface IC of the present utility model ₈On, just under PC software and the effect of CPU software, the duty of environmental protection equipment is all delivered to PC and statistics show and print, thereby determine the duty of environmental protection equipment, play the effect of environmental protection black box.

Claims (2)

1, a kind of environmental protection equipment running status pen recorder, it includes by central processor CPU, latch IC ₁, program storage IC ₂, data-carrier store IC ₃The Single Chip Microcomputer (SCM) system of forming is characterized in that the data line of central processor CPU and address wire meet clock chip IC ₄, and the external counter input port T of CPU ₀Meet IC ₄Square wave output terminal SQW, the input/output port P of CPU _1.0With an address wire P _2.7By code translator IC ₅Meet clock chip IC ₄Sheet choosing end CS, at the external interrupt mouth INT of CPU ₀Connect voltage comparator ic ₆Output, the data line of CPU and address wire connect modulus converter A/D simultaneously, the input channel IN of A/D ₀Connect the output of current sensor G, the reading of CPU held RD and write end WR by rejection gate IC ₇The output that meets A/D allows control end OE and address latch control signal end ALE and start-up control input end START, and the serial input port RXD of CPU and serial delivery outlet TXD are by serial line interface IC ₈Connect the corresponding serial port of PC.

2, by the described environmental protection equipment running status of claim 1 pen recorder, it is characterized in that voltage comparator ic ₆In-phase input end by potentiometer K welding system+5V power supply, the mid point of its inverting input connecting resistance R and stabilivolt DW serial connection branch road, the plus earth of DW, the other end welding system+5V power supply of resistance R.