CN2354182Y

CN2354182Y - Intelligent concentrated wrighting-down device for data on meter

Info

Publication number: CN2354182Y
Application number: CN98225295U
Authority: CN
Inventors: 徐达石
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-10-08
Filing date: 1998-10-08
Publication date: 1999-12-15
Anticipated expiration: 2008-10-08

Abstract

The utility model relates to an intelligent concentrated meter reading device, comprising an I/O port unit, a central processing unit, a real-time clock unit, a memory unit, a power management unit, a communication unit and the central processing unit are respectively connected with the bidirectional data of the I/O port unit, the real-time clock unit, the memory unit, the power management unit and the communication unit. The device can read the data of a remote meter in a concentrated, automatic, real-time and time dividing way. The read data are sent to a microcomputer which is taken as a machine of an upper position in a network, which can eliminate the much inconvenience that the existing meter reading fare register can only read one meter to carry out meter reading and charging.

Description

Intelligence cluster meter copying device

The utility model relates to data processing equipment, relates more specifically to a kind of intelligent cluster meter copying device that can make a copy of remote installed meter tools such as water, electricity, coal gas, central air conditioner air quantity.

Progress and development along with society, the remote installed meter tool has been widely used for cold water meter, hot water gauge, electricity, coal gas, central air conditioner air quantity etc. are measured, and existing automatic data logging message accounting is a card insert type, this message accounting of checking meter can only can not charge by centralized automatic meter-reading to making a copy of charging separately by remote installed meter tool of difference classification purposes (as water, electricity, coal); Do not have the real-time time-sharing function, promptly at any one time the consumption of arbitrary remote installed meter tool is checked meter.

For this reason, task of the present utility model proposes a kind of intelligent cluster meter copying device, the problem that it is inconvenient that the classification that utilizes this meter copying device can solve all kinds of utility meters tools is checked meter, and by the remote transfer signal of remote installed meter tool being concentrated automatic data logging and being concentrated automatic real-time time-sharing to make a copy of.

In order to finish the task of above-mentioned proposition, the utility model adopts following technical scheme: comprise the I/O port unit in this intelligence cluster meter copying device, CPU (central processing unit) (single-chip microcomputer, down together), the real-time clock unit, memory unit, Power Management Unit, communication unit, CPU (central processing unit) respectively with the I/O port unit, the real-time clock unit, memory unit, Power Management Unit, the communication unit bi-directional data connects, the I/O port unit receives the remote transfer signal of each discrete table tool and transports to CPU (central processing unit), CPU (central processing unit) is handled this remote transfer signal, data after the processing and the time of reading the real-time clock unit are stored in the memory unit in the lump, Power Management Unit is monitored the duty of CPU (central processing unit) on the one hand, on the other hand when system's dead electricity, reserve battery is switched to the real-time clock unit guaranteeing real-time clock unit operate as normal, and communication unit is finished the exchanges data work of CPU (central processing unit) and outside communication network.

The utility model adopts by the I/O port unit, CPU (central processing unit), the real-time clock unit, memory unit, Power Management Unit, the concentrating type intelligent meter data recording message accounting that communication unit constitutes, this device can concentrate automatic real-time time-sharing to make a copy of the data of remote installed meter tool, and the data that meter copying device is copied meter copying device by communication unit as slave computer are delivered to the microcomputer as host computer in the network, this device can be eliminated existing meter-copy device can only show the inconvenience that tool is made a copy of to one, can also be water,, coal gas, the concentrated timesharing of central air conditioner etc. is made a copy of to charge and is laid the foundation, thereby has solved the practical challenges in the work of checking meter preferably.

Below in conjunction with drawings and Examples, the utility model is done one explains:

Fig. 1 is the utility model principle block diagram.

Fig. 2 is the schematic diagram of Fig. 1.

Fig. 3 is another embodiment principle block diagram of the utility model.

Fig. 4 is the pretreatment unit schematic diagram among Fig. 3.

Fig. 5 is the Signal Spacing unit schematic diagram among Fig. 3.

Fig. 6 is the status display unit schematic diagram among Fig. 3.

See also Fig. 1 and in conjunction with shown in Figure 2, comprise the I/O port unit in this intelligence cluster meter copying device, CPU (central processing unit), the real-time clock unit, memory unit, Power Management Unit, communication unit, CPU (central processing unit) respectively with the I/O port unit, the real-time clock unit, memory unit, Power Management Unit, the communication unit bi-directional data connects, the I/O port unit receives the remote transfer signal of each discrete table tool and transports to CPU (central processing unit), CPU (central processing unit) is handled this remote transfer signal, data-signal after the processing and the time of reading the real-time clock unit are stored in the memory unit in the lump, Power Management Unit is monitored the duty of CPU (central processing unit) on the one hand, on the other hand when system's dead electricity, reserve battery is switched to the real-time clock unit guaranteeing real-time clock unit operate as normal, and communication unit is finished the exchanges data work of CPU (central processing unit) and outside communication network.The integrated package that each unit adopted was described below with being connected of function pin: it is the I/O integrated package U1 of 82C55 that the I/O port unit adopts model, 26 pin of integrated package U1 and 7 pin connect power supply and ground respectively, pin 1-4, pin 10-25, pin 37-40 are respectively input end, and pin 5, pin 27-36 pin then are respectively output terminal.It is the integrated chip U2 of 87C51 that CPU (central processing unit) adopts model, and the pin 40 of integrated chip U2, pin 20 connect power supply and ground respectively, are connected to crystal oscillator X2 between the pin 18 and 19, and pin 16-17, pin 21-27, pin 30, pin 32-39 are the data address port.It is GK1235 that memory U4 in the memory unit adopts model, and it is 373 that latch U3 adopts model, and the pin 28 and 14 of memory U4 connects power supply and ground respectively, and pin 22,27, pin 1-13, pin 15-19, pin 21, pin 23-26 are FPDP.Employing model in real-time clock unit is 146818 integrated package U5, pin 1,12 ground connection of integrated package U5, and pin 4-11, pin 14-15, pin 17 are the data address port, and pin 13,24 and Power Management Unit are joined.Power Management Unit employing model is 693 integrated package U6, and the pin 13 of integrated package U6 is connected to the pin 1 of chip U2, and pin 3 connects power supply, and pin 1 is by backup battery ground connection.Communication unit comprises driver and receiver, and it is 174 driving integrated package U7 that driver adopts model, and the pin 2,3 of integrated package U7 is respectively as the positive and negative terminal T that posts a letter mouthful ₊, T _-Pin 4 and 16 connects power supply, pin 8 ground connection, and pin 1 is by the lead-in wire TD of resistance R 9 as communication unit; Receiver employing model is 175 reception integrated package U8, and the pin 2,1 of integrated package U8 is the positive and negative terminal R of conduct collection of letters mouth respectively ₊, R _-Pin 4,16 connects power supply, pin 8 ground connection, and pin 3 is by the lead-in wire RD of resistance R 9 as communication unit.Above-mentioned all unit of introducing all adopt known element circuit:

Request in person continuation down in conjunction with Fig. 3-shown in Figure 5, also be connected to pretreatment unit and Signal Spacing unit successively at the input end of said I/O port unit, pretreatment unit carries out shaping to the remote transfer signal of input, signal after shaping exports the Signal Spacing unit to, anti-interference and the electrical isolation of input signal channel is further realized in the Signal Spacing unit, and the output of Signal Spacing unit is connected to the I/O port unit again.Pretreatment unit uses one group of Schmidt trigger, and Schmidt trigger employing model is 106 integrated package U40, and the pin 1 of integrated package U40, pin 4 are respectively input end S0 and output terminal 10, and pin 16,8 connects power supply and ground respectively.In the utility model, the quantity of Schmidt trigger is 24 groups, and then it just has 24 input end S0-S23 and 24 output terminal I0-I23, can accept 24 remote transfer signals.The Signal Spacing unit uses the photoelectricity coupling to isolate, it is the photoelectricity coupling integrated package U50 of 4N25 that this unit adopts model, the pin 1 of integrated package U50 is by the input end of a resistance R 50 as isolated location, pin 2 connects other places (AGND), pin 3, pin 4 are respectively output terminal and connect power end, and the Signal Spacing unit equally also adopts 24.

Please consult Fig. 3, shown in Figure 6 again, also be connected to a status display unit between said pretreatment unit and the communication unit, pretreatment unit and communication unit all have output to be connected to status display unit, and status display unit shows the variation and the communication receiving/transmission state of remote transfer signal.4013 monostable integrated package U60 that status display unit mainly adopts and model are 7407 driving integrated package U61, and light emitting diode L60, the pin 3 of integrated package U60 is the input end of display unit, pin 14 termination powers, pin 7 connects other places (AGND), pin 1 joins with the pin 1 of integrated package U61, and pin 4 is by the pin 7 same ground connection (AGND) of the negative pole integrated package U61 of capacitor C 60 sending and receiving optical diode L60, and pin 2 is as the positive pole of output sending and receiving optical diode L60.

Please consult shown in Figure 2 again, between said communication unit and CPU (central processing unit), be connected to a communication isolated location, the communication isolated location is connected with communication unit and CPU (central processing unit) are two-way, and the communication isolated location is isolated communication unit and CPU (central processing unit).The communication isolated location adopts the photoelectricity coupling to isolate, use model also to be the photoelectricity of 4N25 coupling integrated package U9, the pin 8 of integrated package U9 connects power supply,

2,5 connects other places (AGND), pin 1 and pin 6 are communication lead end RD and TD, and pin 4 is ground, and pin 3 connects the pin 10 of chip U2, pin 4 connects the pin 11 of chip U2 by resistance R 10

The utility model can be handled the 24 great distance numbers of delivering a letter (signal of 24 subscriber's meter tools just) simultaneously, 24 road signals, delivering to the Signal Spacing unit on the one hand after the pretreatment unit pre-service isolates, signal A0～A7, B0-B7, the C0～C7 of output be totally 24 tunnel 24 tunnel input ports that meet the 82C55 of parallel I/O port unit respectively, send status display unit to show the variable condition of the 24 great distance numbers of delivering a letter on the other hand.CPU (central processing unit) focuses on the data that each remote installed meter tool is made a copy of in automatic real-time time-sharing, and be stored among the GK1235 of memory unit by year, month, day, time, canned data can keep 10 years during dead electricity, status display unit can show that the signal of each remote installed meter tool changes and communication state, and can monitor CPU (central processing unit), avoid the utility model to take place locked at work and program richochet phenomenon.

When intelligent cluster meter copying device is connected in the communication network, be that data that meter copying device is copied meter copying device by communication unit as slave computer are delivered to the microcomputer as host computer in the network, communication cycle is the longest to be 50 days, and non-relay communication line can reach 1.2km, and the relaying communication distance surpasses 10km.The communication that the employing of Signal Spacing unit and communication isolated location makes this device have stronger input signal antijamming capability has high anti-jamming capacity.This circuit that installs the remote installed meter tool can grow to 100m, can be used in all kinds of covil construction, especially be adapted to the sub-district that centralized automatic meter-reading charges, housing-group, realization is made a copy of charging to the concentrated automatic real-time time-sharing of gas meter, ammeter, cold water meter, hot water gauge and airflow meter, certainly realize above-mentioned function, also must in CPU (central processing unit), solidify corresponding signal process and bitcom, carry out work with supporting hardware.

Claims

1, a kind of intelligent cluster meter copying device, it is characterized in that: comprise the I/O port unit in this message accounting of checking meter, CPU (central processing unit), the real-time clock unit, memory unit, Power Management Unit, communication unit, CPU (central processing unit) respectively with the I/O port unit, the real-time clock unit, memory unit, Power Management Unit, the communication unit bi-directional data connects, the I/O port unit receives the remote transfer signal of each discrete table tool and transports to CPU (central processing unit), CPU (central processing unit) is handled this remote transfer signal, data after the processing and the time of reading the real-time clock unit are stored in the memory unit in the lump, Power Management Unit is monitored the duty of CPU (central processing unit) on the one hand, on the other hand when system's dead electricity, reserve battery is switched to the real-time clock unit guaranteeing real-time clock unit operate as normal, and communication unit is finished the exchanges data work of CPU (central processing unit) and outside communication network.

2, intelligent cluster meter copying device as claimed in claim 1, it is characterized in that: the input end at said I/O port unit also is connected to pretreatment unit and Signal Spacing unit successively, pretreatment unit carries out shaping to the remote transfer signal of input, signal after shaping exports the Signal Spacing unit to, anti-interference and the electrical isolation of input signal channel is further realized in the Signal Spacing unit, and the output of Signal Spacing unit is connected to the I/O port unit again.

3, intelligent cluster meter copying device as claimed in claim 2, it is characterized in that: also be connected to a status display unit between said pretreatment unit and the communication unit, pretreatment unit and communication unit all have output to be connected to status display unit, and status display unit shows the variation and the communication receiving/transmission state of remote transfer signal.

4, as claim 1 or 3 described intelligent cluster meter copying devices, it is characterized in that: between communication unit and CPU (central processing unit), be connected to a communication isolated location, the communication isolated location is connected with communication unit and CPU (central processing unit) are two-way, and the communication isolated location is isolated communication unit and CPU (central processing unit).

5, as claim 1 or 2 or 3 described intelligent cluster meter copying devices, it is characterized in that: be solidified with signal Processing and bitcom in the said CPU (central processing unit).

6, intelligent cluster meter copying device as claimed in claim 4 is characterized in that; Be solidified with signal Processing and bitcom in the said CPU (central processing unit).