CN201780133U - Magnetic sensing direct reading character wheels of hydroscope - Google Patents
Magnetic sensing direct reading character wheels of hydroscope Download PDFInfo
- Publication number
- CN201780133U CN201780133U CN2009202709394U CN200920270939U CN201780133U CN 201780133 U CN201780133 U CN 201780133U CN 2009202709394 U CN2009202709394 U CN 2009202709394U CN 200920270939 U CN200920270939 U CN 200920270939U CN 201780133 U CN201780133 U CN 201780133U
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- character wheel
- magneto
- chip microcomputer
- dependent sensor
- magnetic sensing
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Abstract
The utility model relates to magnetic sensing direct reading character wheels of a hydroscope, which is characterized in that magnetic steel or a high-magnetic-permeability material sheet (optionally) is embedded to the specified position below the display numbers of the original mechanical scale character wheels according to the specified coding method F1 and are shielded by utilizing plastic strips displayed with the numbers from 0 to 9; magnetic sensing sensors are arranged in the specified position according to the specified coding method F2 on the circumference of the character wheels corresponding to the 9 display numbers; the output of each magnetic sensing sensor is connected to a single chip microcomputer with low power consumption; two signal wires are led out of the single chip microcomputer; the magnetic sensing sensors are welded on the printed circuit boards of the magnetic sensing sensors; and the single chip microcomputer is arranged on the printed circuit board of the single chip microcomputer.
Description
Technical field
One group of hydroscope magnetic of the utility model sensing direct-reading character wheel, be specifically related to one group of totally 24 kinds of embedding magnet steel or high permeability material sheets on meter degree character wheel, magneto-dependent sensor is housed around the character wheel, again the output of each magneto-dependent sensor is connected to the hydroscope mechanical character wheel direct-reading gauge head of low-power scm circuit, in particular for the method for directly obtaining water, gas meter mechanical character wheel reading and the hydroscope direct-reading character wheel that Using such method produces.
Background technology
At present, domestic water meter, gas meter, flow meter all adopt the mechanical system metering, and display mode is mechanical character wheel.Want to realize multiple intelligent functions such as pre-payment, teletransmission, progressive price, the meter degree mode of machinery must be converted into electronic type or directly mechanical character wheel be shown that number conversion becomes electronic information.
The method that the meter degree mode of machinery is converted into electronic type meter degree is called pulsed, its principle is that mechanical rotation is become electronic impulse, it adds up and obtains the electronic information of water, gas consumption the most at last, in the hydroscope metering, photoelectricity, Hall arranged, go alone reed pipe, scheme such as double dry-reed pipe, double dry-reed pipe self-supporting switch, first three plant substantially need not, back two kinds of a large amount of use but problem is still many.Directly mechanical character wheel is shown that number conversion becomes the method for electronic information to be called direct-reading, its principle is not power at ordinary times, only by mechanical partially-working, when the needs metrical information, power supply is also obtained the demonstration number of mechanical character wheel this moment according to the physical characteristics of mechanical character wheel electronics, light electric or magnetic.
Pulsed needs constantly to power to inductive receiving circuit, thereby the power consumption of its accumulative total is very big, in battery powered water, gas, warm table, its power consumption has accounted for the major part of the energy content of battery, pulsed is to obtain metrical information by adding up, if wrong in the process, then this mistake will be kept always.Direct-reading is to keep former machinery metering character wheel group, adopts the demonstration number that directly obtains when needed someway on the character wheel group, and obviously this method is not considered under the factor such as cost more superior than pulsed.
The direct-reading implementation method roughly has four kinds at present: photo-electric, contact, camera shooting type, bar code direct-reading.For the earliest, its frame mode is direct-reading with shooting direct-reading: a camera is installed before the mechanical character wheel display window, the digital picture that photographed is spread out of post analysis can obtain showing number; Photo-electric is that five reflectings surface (or saturating perforation) are set on each water meter character wheel side face, on the corresponding position five photoelectrical couplers is being set with it, whether reflects (receiving) by coupling mechanism and comes the position of counting character wheel is judged; The direct reading frame mode in contact is: load onto a synchronizing potential device below the dial plate of pointer water meter on each needle pivot, the resistance of measuring by the contact potential device is judged the position of pointer indication; Bar code direct-reading and photo-electric roughly the same, but reading object is a bar code.
Other has a kind of counting direct-reading that is called, its scheme is that the chip with acquisition pulse is contained on the metering character wheel, keeps its work by battery, and the data of record and accumulation are saved in chip, the data of reading from chip are exactly the dial plate synchrodata, are actually the modularization of pulsed.
Compare with pulsed, all direct-reading all have two common advantage: 1, the data of reading on the table tool are exactly data presented on the dial plate, are not pulses.2, data mechanically are recorded on the character wheel, need not power at ordinary times, only power in the moment of reading of data.Therefore, be not afraid of power failure, be not afraid of broken string.Theoretically, its data of reading is always consistent with the dial plate data.So, since direct reading notion produces, be subjected to chasing after of people always and doted on and pay close attention to.
The direct-reading implementation method of utilization also has many problems at present, and for example contact is owing to be the way of contact, and wearing and tearing and wearing out all can make its inefficacy, can not be used for wet-type meter; Though shooting direct-reading does not change the mechanical external form of original water, gas meter, structure is also simpler, but Flame Image Process is too complicated, the focusing of photography and the fuzzy digit in the image is translated into number also is difficult point, in addition, because image data amount is big, gather, transmit very difficulty, camera is under the such condition of work of water meter, and long-term reliability is difficult to ensure; Photo-electric and bar code direct-reading need pack into the light emission and the light receiving tube (discerning 5 * 5 pairs of 5 figure place needs) of enormous amount, the power consumption of working is big, the high-precision requirement height of parts precision and assembling, thus make with high costs, product reliability is poor.
The utility model content
The purpose of this utility model is to provide one group of hydroscope magnetic sensing direct-reading character wheel, with the character wheel direct-reading of realizing that cost is lower, the processing precise degree is less demanding, power consumption more economizes, recognition success rate is higher.
The utility model is that the technical scheme that the each side problem of the existing character wheel direct-reading technology of solution is adopted is: one group of hydroscope magnetic sensing direct-reading character wheel, comprise: below former machinery meter degree character wheel demonstration number, press ad hoc approach F1 coding assigned address and embed magnet steel or high permeability materials sheet (this material can), the plastic strip that will show 0～9 numeral again hides (referring to Fig. 1).Put (referring to Fig. 2) in character wheel one week, 9 demonstrations of correspondence numerical digits in addition, load onto magneto-dependent sensor by specific coding method F2 appointed positions, the output with each magneto-dependent sensor is connected to low-power scm again, and single-chip microcomputer is externally drawn 2 signal wires again.
Wherein, described magneto-dependent sensor is the magnetic resistance inductive switch.
Wherein, same character wheel embeds magnet steel needs to show number every one at least.
Wherein, described magneto-dependent sensor is welded on the magneto-dependent sensor printed circuit board (PCB).
Wherein, described single-chip microcomputer is installed on the single-chip microcomputer printed circuit board (PCB).
Its course of work is: when external electronic device needs real-time mechanical character wheel to show number, power up to the direct-reading character wheel, single-chip microcomputer resets in the direct-reading character wheel, start working, gather the output state of each character wheel periphery magneto-dependent sensor in regular turn, at this moment, if the corresponding magnet steel in magneto-dependent sensor the place ahead, then the magnet steel magnetic line of force passes magneto-dependent sensor and is output as " 0 " signal, if the corresponding high permeability materials sheet in magneto-dependent sensor the place ahead, then the corresponding position does not have the magnetic line of force and passes magneto-dependent sensor and other adjacent magnet steel magnetic line of force and caused the magneto-dependent sensor magnetic field intensity very little and export by the short circuit of high permeability material sheet " 1 " signal, a plurality of (4～9) by this character wheel thus the magneto-dependent sensor output valve obtains this character wheel through decoding shows that number obtains all to show numbers, transmit real-time mechanical character wheel by relevant communication protocol to external electronic device again and show number, single-chip microcomputer entered dormancy after task was finished, and external electronic device is turn-offed direct-reading character wheel power supply.
The ad hoc approach F1 of the utility model indication is meant below former machinery meter degree character wheel shows number that 10 positions have is embedded with high permeability materials sheet (with " 1 " expression, or with " 0 " expression), and what have is embedded with magnet steel (represent with " 0 ", or represent with " 1 ").F1 has 5 kinds of encoding schemes: (wherein, if " 1 " represents the high permeability materials sheet, then " 0 " represents magnet steel, otherwise if " 1 " represents magnet steel, then " 0 " represents the high permeability materials sheet)
The ad hoc approach F2 of the utility model indication be meant this character wheel one week corresponding 9 places that show that numerical digits are put have magneto-dependent sensor (with " 1 " expression) is housed, what have is not equipped with magneto-dependent sensor (with " 0 " expression).F2 has 16 kinds of encoding schemes:
A, occupy adjacent 5 sensing stations, it is encoded to: " 11111 " (a1).
B, occupy adjacent 7 sensing stations, it is encoded to: " 1010101 " (b1), " 1010111 " (b2), " 1011011 " (b3), " 1011101 " (b4), " 1101011 " (b5), " 1101101 " (b6), " 1110101 " (b7).
C, occupy adjacent 8 sensing stations, it is encoded to: " 10011011 " (c1), " 10101011 " (c2), " 10101101 " (c3), " 10110011 " (c4), " 10110101 " (c5), " 11001101 " (c6), " 11010101 " (c7).
D, occupy adjacent 9 sensing stations, it is encoded to: " 101010101 " (d1).
The utility model has 5 kinds of schemes in the coding of character wheel embedding high permeability materials sheet and magnet steel, magneto-dependent sensor installation site coding has 16 kinds of schemes, the 80 kinds of embodiments that combined, but the utility model has only therefrom been selected wherein 24 kinds (combination of " √ " symbol correspondence is arranged in seeing the following form).And character wheel embeds high permeability materials sheet and magnet steel and is encoded to d, magneto-dependent sensor installation site to be encoded to b1 be preferred plan.
Table 1, the employed 24 kinds of magnet steel of the utility model/sensor encoding scheme
The technical scheme of the utility model indication is meant that the high permeability materials sheet of any picture " √ " symbol correspondence in the employing table one and magnet steel coding and magneto-dependent sensor installation site are encoded and lays high permeability materials sheet and magnet steel, magneto-dependent sensor, output with each magneto-dependent sensor is connected to low-power scm again, and single-chip microcomputer is externally drawn the direct-reading character wheel embodiment of signal wire again.
One group of hydroscope magnetic of the utility model sensing direct-reading character wheel, its advantage and effect are: the utility model adopts magnetic resistance inductive switch device as magneto-dependent sensor, its each working sensor power consumption is 1.6 μ A only, all compare greater than the work power consumption of 2mA with receiving tube with the luminotron of photo-electric, sensing partly power consumption drops to several per milles.Only several maos of high permeability materials sheet, magnet steel that the utility model is used, magnetic resistance inductive switch device is less than one of a yuan, the high permeability materials sheet of 5 figure place direct-reading, magnet steel and sensing partly only need about 20 yuan, and photo-electric needs 25 luminotrons and receiving tube, and cost is more than 80 yuan.The used magnetic resistance inductive switch device volume of the utility model is below 1/10 of light receiving tube, and high permeability materials sheet and magnet steel embed in the character wheel, do not account for volume in addition.The utility model high permeability materials sheet and magnet steel all embed character wheel, the printed panel (on adorn single-chip microcomputer) that has only 4～5 superfine printed panels (on adorn magnetic resistance inductive switch device) and 2～3 nail cover sizes around the character wheel, do not have other part again, processing and manufacturing are very simple.
Therefore, the direct-reading gauge head that adopts the given technical scheme of the utility model to make, compare with at present the most ripe photo-electronic directly reading character wheel, cost drops to below 1/3, the working time power consumption drops to 1/tens, volume drops to below half, and is basic identical with former mechanical character wheel, and recognition success rate, product reliability all increase substantially.
Description of drawings
Character wheel high permeability materials sheet shown in Figure 1 and magnet steel riding position synoptic diagram.
Figure 2 shows that sensor, with character wheel relative position synoptic diagram.
Figure 3 shows that adjacent character wheel embeds different directions magnet steel and magneto-dependent sensor correspondence position synoptic diagram.
A, high permeability materials sheet b, magnet steel c, direct-reading character wheel shell
The magneto-dependent sensor f of d, single-chip microcomputer and printed circuit board (PCB) e, adjacent character wheel, character wheel show number
G, magneto-dependent sensor printed circuit board (PCB)
Embodiment
One group of hydroscope magnetic of the utility model sensing direct-reading character wheel, comprise: below former machinery meter degree character wheel demonstration number f, press ad hoc approach F1 coding assigned address and embed high permeability materials sheet a or magnet steel b, hide (referring to Fig. 1) with the plastic strip that shows 0～9 numeral again.Put (referring to Fig. 2) in character wheel one week, 9 demonstrations of correspondence numerical digits, load onto magneto-dependent sensor bar e by specific coding method F2 appointed positions, output with each magneto-dependent sensor is connected to low-power scm d again, single-chip microcomputer is externally drawn two signal wires again, and above-mentioned parts are installed in the direct-reading character wheel shell c.
Wherein, described magneto-dependent sensor is the magnetic resistance inductive switch.
In Fig. 1, the demonstration number of each character wheel below is laid high permeability materials sheet (code " 1 ") or is laid magnet steel (code " 0 "), and illustrated is the position of high permeability materials sheet/magnet steel in character wheel.
In Fig. 2, show the relative position of magneto-dependent sensor and character wheel, also can see the high permeability materials sheet of each character wheel embedding and the relative position of magnet steel among the figure, the position of magnet steel and high permeability materials sheet among the figure, on the contrary also can.In Fig. 3, show the situation that adjacent character wheel embeds the different directions magnet steel, require adjacent character wheel magnet steel magnetic pole mode for repelling each other, can not rub to guarantee adjacent character wheel.
The utility model is according to accompanying drawing, direct-reading can be shown the number implementation procedure describe (embed magnet steel with character wheel and be encoded to scheme that d, magneto-dependent sensor installation site be encoded to b1 for example) as follows:
Set character wheel and show that number " 9 " is a start bit, embedding the magnet steel coding by character wheel obtains: each character wheel shows that number " 9 ", " 1 ", " 4 ", " 7 " will embed magnet steel 2 down, character wheel shows that number " 2 ", " 3 ", " 5 ", " 6 ", " 8 ", " 0 " will embed high permeability materials sheet a down, and on 1,3, No. 5 character wheels of the mat woven of fine bamboo strips of 5 display digits wheel, press the N level towards left to embedding, on 2, No. 4 character wheels of the mat woven of fine bamboo strips, press the S level towards left to embedding.Showing that number " 1 ", " 4 ", " 7 ", " 9 " correspondence position are equipped with four magneto-dependent sensor printed circuit board (PCB) g (being fixed on the direct-reading character wheel shell 3), article 4, the output signal of magneto-dependent sensor printed circuit board (PCB) g and power supply etc. are connected to single-chip microcomputer and printed circuit board (PCB) d (being positioned at direct-reading character wheel shell c left part), and single-chip microcomputer and printed circuit board (PCB) d outwards draw power supply and signal wire again.
When external electronic device need obtain character wheel demonstration this moment number, single-chip microcomputer and whole magneto-dependent sensor to the direct-reading character wheel power up, single-chip microcomputer resets in the direct-reading character wheel, start working, read the output state (being 0001 among Fig. 3) of 4 magneto-dependent sensors of people's the 1st character wheel earlier, two these character wheels of acquisition of tabling look-up show that number is " 1 ", read the output state of four magneto-dependent sensors of the 2nd～5 character wheel in regular turn, 2 will obtain all to show number through tabling look-up, transmit real-time mechanical character wheel by relevant communication protocol to external electronic device again and show number, single-chip microcomputer entered dormancy after task was finished, and external electronic device is turn-offed direct-reading character wheel power supply.
Table 2: character wheel embeds magnet steel and is encoded to the decoding table that d, magneto-dependent sensor installation site are encoded to b1.
Claims (3)
1. one group of hydroscope magnetic sensing direct-reading character wheel is characterized in that: below former machinery meter degree character wheel demonstration number, embed magnet steel or high permeability materials sheet, hide with the plastic strip that shows 0～9 numeral; Put in character wheel one week, 9 demonstrations of correspondence numerical digits in addition, load onto magneto-dependent sensor, the output with each magneto-dependent sensor is connected to low-power scm again, and single-chip microcomputer is externally drawn 2 signal wires again; Described magneto-dependent sensor is welded on the magneto-dependent sensor printed circuit board (PCB); Described single-chip microcomputer is installed on the single-chip microcomputer printed circuit board (PCB).
2. one group of hydroscope magnetic sensing direct-reading character wheel according to claim 1, it is characterized in that: described magneto-dependent sensor is the magnetic resistance inductive switch.
3. one group of hydroscope magnetic sensing direct-reading character wheel according to claim 1 is characterized in that: same character wheel embeds magnet steel and needs at least to show number every one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202709394U CN201780133U (en) | 2009-12-02 | 2009-12-02 | Magnetic sensing direct reading character wheels of hydroscope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202709394U CN201780133U (en) | 2009-12-02 | 2009-12-02 | Magnetic sensing direct reading character wheels of hydroscope |
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| Publication Number | Publication Date |
|---|---|
| CN201780133U true CN201780133U (en) | 2011-03-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202709394U Expired - Lifetime CN201780133U (en) | 2009-12-02 | 2009-12-02 | Magnetic sensing direct reading character wheels of hydroscope |
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| CN (1) | CN201780133U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102620790A (en) * | 2012-03-21 | 2012-08-01 | 山东潍微科技股份有限公司 | Counting device for controlling turn-on and turn-off of singlechip by using sensing signal |
| CN102944257A (en) * | 2012-09-10 | 2013-02-27 | 浙江先芯科技有限公司 | Numerical word wheel of direct-reading gage |
| CN103791973A (en) * | 2014-03-07 | 2014-05-14 | 四川恒芯科技有限公司 | Non-core coil induction type meter data collection device |
| CN107515031A (en) * | 2017-07-14 | 2017-12-26 | 杭州浩派仪表科技有限公司 | A kind of device and method thereof for recording hydroscope load curve |
-
2009
- 2009-12-02 CN CN2009202709394U patent/CN201780133U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102620790A (en) * | 2012-03-21 | 2012-08-01 | 山东潍微科技股份有限公司 | Counting device for controlling turn-on and turn-off of singlechip by using sensing signal |
| CN102944257A (en) * | 2012-09-10 | 2013-02-27 | 浙江先芯科技有限公司 | Numerical word wheel of direct-reading gage |
| CN103791973A (en) * | 2014-03-07 | 2014-05-14 | 四川恒芯科技有限公司 | Non-core coil induction type meter data collection device |
| CN103791973B (en) * | 2014-03-07 | 2017-05-10 | 四川恒芯科技股份有限公司 | Non-core coil induction type meter data collection device |
| CN107515031A (en) * | 2017-07-14 | 2017-12-26 | 杭州浩派仪表科技有限公司 | A kind of device and method thereof for recording hydroscope load curve |
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Granted publication date: 20110330 |
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