CN205177006U - MBUS mode intelligence water gauge hander - Google Patents
MBUS mode intelligence water gauge hander Download PDFInfo
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- CN205177006U CN205177006U CN201520863221.1U CN201520863221U CN205177006U CN 205177006 U CN205177006 U CN 205177006U CN 201520863221 U CN201520863221 U CN 201520863221U CN 205177006 U CN205177006 U CN 205177006U
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Abstract
The utility model discloses a MBUS mode intelligence water gauge hander, it includes main chip circuit, with power source circuit, signal gating circuit, display circuit, simulation MBUS circuit, button interface circuit, online programming interfaces circuit, IC -card interface circuit, the power selection of IC -card interface and control circuit, two -stage voltage detection circuit, voltage stabilizing circuit that main chip circuit connects, IC -card clock source selection circuit, clock frequency produce circuit, ESAM power source 0 and power source 1 power source 0, and with signal gating circuit electricity is connected awakens the circuit up. The utility model discloses a consequently MBUS mode intelligence water gauge hander is applicable to installation environment and the harsh occasion of mounted position owing to can separate with the base table, can effectually prevent the inconvenience of operations such as plug -in card, and can independently install the IC -card interface in the hander with showing the function, be convenient for detect, maintain and maintain and change, reduced cost of maintenance.
Description
Technical field
The utility model relates to a kind of hand-held water meter, particularly relates to a kind of MBUS mode intellectual water meter hander, belongs to water meter measurement fixture fields.
Background technology
Intellectual water meter is a kind of a kind of meter tool popular on water measurement instrument market at present, relative to traditional stem-winder tool, intellectual water meter adds the equipment such as CPU, can realize thus robotization, intelligent computing parts thus achieve water metering management intellectuality, facilitate the unified management of Running-water Company, improve the efficiency of operation of enterprise.
For common intellectual water meter, that the circuit module of water meter and card interface circuit and base table are fitted together, data transmission is carried out by card interface circuit and IC-card, the information such as water consumption, surplus water can be inquired about, also can use to move back and purchase card record sheet internal information, remove residue consumption in table, close meter valve.For intellectual water meter in some constrained environment, fitting together with base table to cause user's plug-in card to operate very inconvenient (if water pump composite is in well), the card interface circuit of water meter is now just needed to separate, hander inside can be installed on, plug-in card can be made like this to operate and to become simple, convenient and quick, in addition, also the lcd segment by hander intuitively checks water meter information, moreover, keep in repair and when safeguarding, do not need whole table dismounting to realize, save human resources greatly, reduced the waste of human resources, reduce maintenance cost.
Utility model content
The utility model object there is provided a kind of MBUS mode intellectual water meter hander, and its phase has following two advantages than product in the past: 1. the occasion being applicable to installation environment and installation site harshness, effectively can prevent the inconvenience of the operations such as plug-in card; 2. the IC-card interface circuit of common IC card type intellectual water meter and Presentation Function are separated, be convenient to detect, safeguard and maintain and replace, reduce maintenance cost.
The utility model technical solution problem adopts following technical scheme: a kind of MBUS mode intellectual water meter hander, it comprises master chip circuit, the power interface circuit be connected with described master chip circuit, signal gating circuit, display circuit, simulation MBUS circuit, keystroke interface circuit, online programming interface circuit, IC-card interface circuit, IC-card interface power is selected and control circuit, two-stage voltage detecting circuit, mu balanced circuit, IC-card clock source selection circuit, clock generation circuit, ESAM modular circuit and clock chip modular circuit, and to be electrically connected with described signal gating circuit wake electrification circuit up.
Optionally, described power interface circuit comprises power interface and diode, described power interface is connected with external power source, and the positive terminal of described diode is connected to described power interface, produces the situation of both positive and negative polarity reversal connection when being connected with external power source to prevent described power interface.
Optionally, it is characterized in that, described signal gating circuit comprises three signal output parts, described in wake electrification circuit up and comprise the interface corresponding with described three signal output parts, for realizing the activation waking electrification circuit up.
Optionally, described keystroke interface circuit is connected with the button on hander.
Optionally, described two-stage voltage detecting circuit comprises the voltage checking chip for detecting voltage and the triode for detecting two step voltages.
Optionally, described mu balanced circuit comprises the power module of voltage regulation for stable master chip circuit voltage.
Optionally, described IC-card interface circuit, the selection of IC-card interface power and control circuit are all electrically connected with the IC-card deck in hander.
Optionally, described display circuit is connected with the liquid crystal indicator on hander.
Optionally, described master chip circuit, power interface circuit, signal gating circuit, display circuit, simulation MBUS circuit, keystroke interface circuit, online programming interface circuit, IC-card interface circuit, IC-card interface power are selected and control circuit, two-stage voltage detecting circuit, mu balanced circuit, IC-card clock source selection circuit, clock generation circuit, ESAM modular circuit, clock chip modular circuit and wake the inside that electrification circuit is all fixed on MBUS mode intellectual water meter hander up.
The utility model has following beneficial effect: MBUS mode intellectual water meter hander of the present utility model, owing to can be separated with base table, is therefore applicable to the occasion of installation environment and installation site harshness, effectively can prevent the inconvenience of the operations such as plug-in card; And each circuit module independently can be installed in hander of the present utility model, make only to need the circuit module of handheld device inside to change if there is fault in water meter, be convenient to detect, safeguard and maintain and replace, reduce maintenance cost.
Accompanying drawing explanation
Fig. 1 is the electrical block diagram of MBUS mode intellectual water meter hander of the present utility model;
Fig. 2 is power interface circuit of the present utility model;
Fig. 3 of the present utility modelly wakes electrification circuit up;
Fig. 4 is signal gating circuit of the present utility model;
Fig. 5 is display circuit of the present utility model;
Fig. 6 is simulation MBUS circuit of the present utility model;
Fig. 7 is two groups of keystroke interface circuit of the present utility model;
Fig. 8 is online programming interface circuit of the present utility model;
Fig. 9 is the two poles of the earth of the present utility model voltage detecting circuits;
Figure 10 is mu balanced circuit of the present utility model;
Figure 11 is IC-card interface circuit of the present utility model;
Figure 12 is that IC-card interface power of the present utility model is selected and control circuit;
Figure 13 is IC-card clock source selection circuit of the present utility model;
Figure 14 is clock generation circuit of the present utility model;
Figure 15 is clock chip modular circuit of the present utility model;
Figure 16 is ESAM modular circuit of the present utility model;
Figure 17 is master chip circuit of the present utility model.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the technical solution of the utility model is further elaborated.
Embodiment 1
Present embodiments provide a kind of MBUS mode intellectual water meter hander, it comprises LCD screen, button (two), USB interface, IC-card deck and each circuit module; Thus achieve that this hander can realize card operation, data in reading table, supplement with money to table write data, the water yield, the function such as preservation table data.
The major function of each circuit module comprise flow rate calculation, Valve controlling and and hander between data transmission.Data between circuit module are conveyed through wired mode and transmit according to MBUS communication protocol
Described each circuit module comprises master chip circuit, power interface circuit, wakes electrification circuit up, signal gating circuit, display circuit, simulation MBUS circuit, keystroke interface circuit, online programming interface circuit, IC-card interface circuit, IC-card interface power are selected and control circuit, two-stage voltage detecting circuit, mu balanced circuit, IC-card clock source selection circuit, clock generation circuit, ESAM modular circuit and clock chip modular circuit
With reference to figure 2, in the present embodiment, described power interface circuit is connected with described master chip circuit, to be realized the power supply to master chip circuit by described power interface circuit, in the present embodiment, described power interface circuit is also electrically connected on the functional module that LCD screen and USB interface etc. need power supply, and realizes the power supply to these equipment thus.
Wherein, the power interface circuit of the present embodiment comprises power interface JD-DY and diode D1 (model IN4007), described power interface is connected with external power source, the positive terminal of described diode is connected to described power interface, isolate by adopting diode to do, produce the situation of both positive and negative polarity reversal connection when being connected with external power source to prevent described power interface, improve the security of circuit; More preferably, described external power source can adopt common No. 7 (1.5V) batteries of four joints to realize.
With reference to figure 3 and Fig. 4, described signal gating circuit comprises signal output part, described in wake electrification circuit up and comprise the interface corresponding with described signal output part, for realizing the activation waking electrification circuit up; Referring again to Fig. 5, when the signal of in KA, CAI1, CAI2 comes interim, will activate and above-mentionedly wake electrification circuit up, thus single-chip microcomputer is started working, then single-chip microcomputer sets high XHK, show that current is which signal arrives, then make corresponding process by scanning KW, CA1, CA2.Set low the connection that signal gating XHK comes cut-off signal and single-chip microcomputer when signal transacting completes, ensure the reliable power down of power supply.Referring again to Fig. 4, when the signal of in KA, CAI1, CAI2 comes interim, will activate and above-mentionedly wake electrification circuit up, thus single-chip microcomputer is started working, then single-chip microcomputer sets high XHK, show that current is which signal arrives, then make corresponding process by scanning KW, CA1, CA2.When signal transacting completes, set low the connection that signal gating XHK comes cut-off signal and single-chip microcomputer, ensure the reliable power down of power supply.
In the present embodiment, described signal output part is 3; When signal gating circuit at least one signal in three road signals comes interim, can activate and above-mentionedly wake electrification circuit up, thus singlechip CPU is started working, then by scanning, single-chip microcomputer show that current is which signal arrives, then makes corresponding process.Set low the connection that signal gating comes cut-off signal and single-chip microcomputer when signal transacting completes, ensure the reliable power down of power supply; Described wakes electrification circuit up for realizing following function: CPU card is being in power-down state without any signal (such as sampled signal, plug-in card signal, power-off signal etc.) temporarily, and power consumption is 0; Wake electrification circuit when there being signal up and make circuit turn-on to capacitor charging, whole CPU card single-chip microcomputer is powered on, locks power on signal simultaneously.
With reference to figure 5, in the present embodiment, described display circuit is connected with the liquid crystal indicator on hander, and this circuit is directly connected the displaying contents pushing the output of master chip circuit with programmed control to liquid crystal indicator by master chip circuit; In the present embodiment, it can be electrically connected with outside LCD by the interface of multiple screen line stitch.
With reference to figure 6, the simulation MBUS circuit of the present embodiment, it is by MBUS bus transfer electric power and signal, and can realize transmission on long-distance cable; And its working method is catechetical, described MBUS mode intellectual water meter hander terminal after the instruction of receiving central server management system just can via simulation MBUS circuit by the interface on this circuit by data by cable transmission to remote central management system; The present embodiment can adopt existing MBUS mimic channel, and its structure will repeat no longer one by one.More preferably, the simulation MBUS circuit of the present embodiment is used for the data in MBUS mode intellectual water meter hander to connect outside MBUS bus, and be transferred to long-distance management system, interface section J8-CON4 carry is wherein on External cable.
With reference to figure 7, in the present embodiment, described keystroke interface circuit is connected with button, can respond the function of different key on hander thus; More preferably, the present embodiment comprises two groups of keystroke interface circuit, corresponding to two buttons, and is electrically connected on button, responds to and accept actuation of keys, and be transferred to master chip circuit.
With reference to figure 8, the online programming interface circuit of the present embodiment comprise multiple can with the interface of external computer or upper machine communication, expansion to master chip circuit function and change revision can be realized by online programming interface circuit.
With reference to figure 9, the two-stage voltage detecting circuit of the present embodiment comprises the voltage checking chip for detecting voltage and the triode for detecting two step voltages, concrete, detected by detection chip MD7024, when voltage is lower than 2.4V, MD7024 output low level, obtains two-stage voltage detecting by controlling triode switch simultaneously.
With reference to Figure 10, described mu balanced circuit is used for the voltage for master chip circuit with stable, and in order to the adverse effect preventing external circuitry overtension from causing, described mu balanced circuit also comprises the voltage of power module of voltage regulation for stable master chip circuit.When external voltage is higher than 3V, power module of voltage regulation makes the stable operating voltage of single-chip microcomputer at 3.3V.
With reference to Figure 11 and 12, the IC-card interface circuit of the present embodiment, IC-card interface power are selected all to be electrically connected with IC-card deck with control circuit, IC-card interface circuit is for realizing the access of IC-card, IC-card interface power is selected and control circuit is used for when detecting that card signal is powered to card temporarily, to card power down when master chip processing of circuit completes, prevent outside world.More specifically, described IC-card interface circuit is directly connected with IC-card deck by multiple pin contacts at J4-K; Described IC-card interface power is selected and control circuit relies on triode T68 on-off, when card signal being detected temporarily to card power supply, to card power down when card process completes.
With reference to figures 13 to 15, wherein, IC-card clock source selection circuit, clock generation circuit, clock chip modular circuit provide clock signal for the IC-card on the IC-card deck on hander, ESAM module etc.As everyone knows, IC-card needs could perform specific function after mutual with the interface circuit on IC-card deck, clock chip modular circuit wherein, for utilizing the communication between clock chip and master chip circuit, makes master chip circuit obtain the real time clock information of standard; Clock generation circuit is wherein used for providing clock signal to card, the actual frequency scope of clock signal can be different frequency during reset answer, such as usually used is the clock frequency of 1 ~ 5MHz, and IC-card clock source selection circuit is used for concrete which the road clock frequency selecting clock generation circuit to export; More specifically, described IC-card clock source selection circuit passes through the different clock frequency of two-way resistance selection; Described clock generation circuit produces two-way clock frequency by 74HC02; Described clock chip modular circuit has been come with the real time data of master chip circuit mutual by PCF8563.
With reference to Figure 16, described ESAM modular circuit is used for the data in black list tool; In the present embodiment, described ESAM modular circuit adds encrypting and authenticating ability for showing tool, it is inner that this module is fixedly mounted on card table, and all important parameters in storage card table operational process, carry out mutual certification and message exchange by ESAM module in water meter and subscriber card.Market there is a lot of manufacturer provide this generic module of plurality of specifications, be all applicable to the utility model.
With reference to Figure 17, described master chip circuit can adopt the controller such as single-chip microcomputer, DSP and CPU, for controlling the work of each circuit module be connected with its circuit, especially directly can control the displaying contents of LCD screen.
Improved by said structure, MBUS mode intellectual water meter hander of the present utility model can make water meter have better voltage detecting adaptive faculty, and the fast powering-up realizing water meter work wakes up, has good security and serviceability.
The sequencing of above embodiment, only for ease of describing, does not represent the quality of embodiment.
Last it is noted that above embodiment is only in order to illustrate the technical solution of the utility model, be not intended to limit; Although be described in detail the utility model with reference to previous embodiment, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of each embodiment technical scheme of the utility model.
Claims (9)
1. a MBUS mode intellectual water meter hander, it is characterized in that, comprise master chip circuit, the power interface circuit be electrically connected with described master chip circuit, signal gating circuit, display circuit, simulation MBUS circuit, keystroke interface circuit, online programming interface circuit, IC-card interface circuit, IC-card interface power is selected and control circuit, two-stage voltage detecting circuit, mu balanced circuit, IC-card clock source selection circuit, clock generation circuit, ESAM modular circuit and clock chip modular circuit, and to be electrically connected with described signal gating circuit wake electrification circuit up.
2. MBUS mode intellectual water meter hander according to claim 1, it is characterized in that, described power interface circuit comprises power interface and diode, described power interface is connected with external power source, the positive terminal of described diode is connected to described power interface, produces the situation of both positive and negative polarity reversal connection when being connected with external power source to prevent described power interface.
3. MBUS mode intellectual water meter hander according to claim 1, it is characterized in that, described signal gating circuit comprises three signal output parts, described in wake electrification circuit up and comprise the interface corresponding with described three signal output parts, for realizing the activation waking electrification circuit up.
4. MBUS mode intellectual water meter hander according to claim 1, it is characterized in that, described keystroke interface circuit is connected with the button on hander.
5. MBUS mode intellectual water meter hander according to claim 1, it is characterized in that, described two-stage voltage detecting circuit comprises the voltage checking chip for detecting voltage and the triode for detecting two step voltages.
6. MBUS mode intellectual water meter hander according to claim 1, it is characterized in that, described mu balanced circuit comprises the power module of voltage regulation for stable master chip circuit voltage.
7. MBUS mode intellectual water meter hander according to claim 1, is characterized in that, described IC-card interface circuit, IC-card interface power are selected and control circuit is all electrically connected with the IC-card deck in hander.
8. MBUS mode intellectual water meter hander according to claim 1, it is characterized in that, described display circuit is connected with the liquid crystal indicator on hander.
9. MBUS mode intellectual water meter hander according to claim 1, it is characterized in that, described master chip circuit, power interface circuit, signal gating circuit, display circuit, simulation MBUS circuit, keystroke interface circuit, online programming interface circuit, IC-card interface circuit, IC-card interface power are selected and control circuit, two-stage voltage detecting circuit, mu balanced circuit, IC-card clock source selection circuit, clock generation circuit, ESAM modular circuit, clock chip modular circuit and wake the inside that electrification circuit is all fixed on MBUS mode intellectual water meter hander up.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520863221.1U CN205177006U (en) | 2015-11-02 | 2015-11-02 | MBUS mode intelligence water gauge hander |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520863221.1U CN205177006U (en) | 2015-11-02 | 2015-11-02 | MBUS mode intelligence water gauge hander |
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| Publication Number | Publication Date |
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| CN205177006U true CN205177006U (en) | 2016-04-20 |
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| CN201520863221.1U Active CN205177006U (en) | 2015-11-02 | 2015-11-02 | MBUS mode intelligence water gauge hander |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106683386A (en) * | 2017-03-03 | 2017-05-17 | 济南瑞泉电子有限公司 | Intelligent concentrator of valve control water meter |
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2015
- 2015-11-02 CN CN201520863221.1U patent/CN205177006U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106683386A (en) * | 2017-03-03 | 2017-05-17 | 济南瑞泉电子有限公司 | Intelligent concentrator of valve control water meter |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 102400 Fangshan District Baiyang Lu 2, 1 buildings -1 to 3 tier 101, Beijing Patentee after: Beijing Polytron Technologies Inc Address before: 102488 Baiyang Lu Jia 2, Liangxiang Economic Development Zone, Fangshan District, Beijing. Patentee before: Beijing Jingyuan Smart Water Meter Co., Ltd. |