CN205302448U - Paper currency detection device - Google Patents
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- CN205302448U CN205302448U CN201521140305.9U CN201521140305U CN205302448U CN 205302448 U CN205302448 U CN 205302448U CN 201521140305 U CN201521140305 U CN 201521140305U CN 205302448 U CN205302448 U CN 205302448U
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Abstract
The utility model provides a paper currency detection device, paper currency detection device include magnetic sensor, and magnetic sensor includes: the body, a permanent magnet for forming the magnetic field area territory, being used for the magnetic stripe information and the environmental information of real -time perception paper currency and producing the first signal's a plurality of first chip, a plurality of first chip settings are in the magnetic field area intra -area, and equal parallelly connected settings of all first chips, be used for real -time perception environmental information and produce the corrected signal at least one revise chip, revise the chip and be in the magnetic field area intra -area side or the outside, an environmental signal change volume is subtracted each other to zero, and later signal processing chip converts the difference into second signal and outwards exports for receiving and handle the signal processing chip of the first signal and corrected signal, in signal processing chip, the first signal after the change with change after the corrected signal do less than so that the first signal's environmental signal change volume and corrected signal. the utility model provides a paper currency detection device's among the prior art the unsafe problem of testing result.
Description
Technical field
This utility model relates to sensor and paper currency detection technical field, in particular to a kind of note detection device.
Background technology
At present in paper currency detection technical field, by the magnetic strip information of Magnetic Sensor perception bank note, the detection mode of the identification note true and false is particularly important, existing note detection device, it is provided with Magnetic Sensor in paper money counter, cash inspecting machine or cleaning-sorting machine, and Magnetic Sensor is highly susceptible to the interference of the extraneous factors such as temperature in environment, humidity and noise in the course of the work, thus have impact on the result accuracy of the note detection device identification note true and false.
Utility model content
Main purpose of the present utility model is in that to provide a kind of note detection device, the inaccurate problem of testing result to solve note detection device of the prior art.
To achieve these goals, this utility model provides a kind of note detection device, and note detection device includes Magnetic Sensor, and Magnetic Sensor includes: body, for forming the permanent magnet of field region, permanent magnet is arranged on body, for the magnetic strip information of real-time perception bank note and environmental information multiple first chips producing the first signal, multiple first chips are arranged in field region, and all first chips is all arranged in parallel, environmental information includes ambient temperature information and/or ambient humidity information and/or environmental noise information, for real-time perception environmental information at least one the correction chip producing correction signal, revise chip and be in inside field region or outside, for receiving and process the first signal and revising the signal processing chip of signal, first signal is equal because environmental information changes the ambient signal variable quantity produced with the ambient signal variable quantity because of environmental information change generation revising signal, in signal processing chip, the first signal after change with change after revise signal do difference so that the first signal ambient signal variable quantity and correction signal ambient signal variable quantity be kept to zero mutually, difference is converted to secondary signal and outwards exports by signal processing chip afterwards, first chip and correction chip electrically connect with signal processing chip respectively.
Further, signal processing chip is difference amplifier.
Further, Magnetic Sensor also includes: for transmitting the first logic with shift control circuit of the first signal, the first chip is electrically connected with signal processing chip by the first logic with shift control circuit; For transmitting the second logic with shift control circuit revising signal, revise chip and electrically connected with signal processing chip by the second logic with shift control circuit.
Further, Magnetic Sensor also includes: for transmitting the first logic with shift control circuit of the first signal, the first logic with shift control circuit is integrated in signal processing chip; For transmitting the second logic with shift control circuit revising signal, the second logic with shift control circuit is integrated in signal processing chip.
Further, note detection device also includes: the first earth element, and the first chip passes through the first earth element ground connection; And/or second earth element, revise chip by the second earth element ground connection.
Further, it is earth resistance that note detection device also includes the first earth element and the second earth element, the first earth element and/or the second earth element.
Further, the first chip includes the first Magnetosensing element, and the change in resistance of the first Magnetosensing element is to produce the first signal; And/or correction chip includes the second Magnetosensing element, the change in resistance of the second Magnetosensing element is to produce to revise signal.
Further, body includes cavity and the opening connected with cavity, Magnetic Sensor also includes: substrate, and substrate is arranged on opening part to be sealed in cavity by permanent magnet, and the first chip, correction chip and signal processing chip are arranged on the surface deviating from cavity side of substrate; Protective cover, protective cover is located on substrate so that the first chip, correction chip and signal processing chip are accommodated in the protection intracavity that protective cover is formed with substrate.
Further, chip is revised between signal processing chip and the first chip.
Further, each first chip is in series with a construction of switch respectively, determines the number of the first chip come into operation according to the open/close states of each construction of switch.
Further, note detection device is the one in paper money counter, cash inspecting machine or cleaning-sorting machine.
Application the technical solution of the utility model, by being arranged to the magnetic strip information of real-time perception bank note and environmental information on the Magnetic Sensor of note detection device and producing multiple first chips of the first signal and revise at least one of signal for real-time perception environmental information producing and revise chip, first chip and correction chip electrically connect with signal processing chip respectively, so that setting up stable annexation between the first chip and correction chip and signal processing chip, it is ensured that the first signal and correction signal are passed to the reliability of signal processing chip. wherein, first signal is equal because environmental information changes the ambient signal variable quantity produced with the ambient signal variable quantity because of environmental information change generation revising signal, owing to being provided with for receiving and process the first signal and revising the signal processing chip of signal, after the first signal and correction signal are transferred into signal processing chip, process through signal processing chip, the first signal after change with change after revise signal do difference so that the first signal ambient signal variable quantity and correction signal ambient signal variable quantity be kept to zero mutually, difference is converted to secondary signal and outwards exports using the signal as the identification note true and false by signal processing chip afterwards, thus eliminating environmental information to change the impact that Magnetic Sensor is produced, and then improve the accuracy of the testing result of note detection device.
Accompanying drawing explanation
The Figure of description constituting the part of the application is used for providing being further appreciated by of the present utility model, and schematic description and description of the present utility model is used for explaining this utility model, is not intended that improper restriction of the present utility model. In the accompanying drawings:
Fig. 1 illustrates the internal structure schematic diagram of the Magnetic Sensor according to an alternative embodiment of the present utility model;
Fig. 2 illustrates the top view of the Magnetic Sensor in Fig. 1;
Fig. 3 illustrates the signal processing flow figure of the Magnetic Sensor in this utility model; And
Fig. 4 illustrates the circuit theory diagrams of the Magnetic Sensor in Fig. 1.
Wherein, above-mentioned accompanying drawing includes the following drawings labelling:
10, body; 20, permanent magnet; 30, the first chip; 31, the first Magnetosensing element; 40, chip is revised; 41, the second Magnetosensing element; 50, signal processing chip; 60, substrate; 70, protective cover; 80, the first earth element; 90, the second earth element.
Detailed description of the invention
It should be noted that when not conflicting, the embodiment in the application and the feature in embodiment can be mutually combined. Describe this utility model below with reference to the accompanying drawings and in conjunction with the embodiments in detail.
It it is noted that described further below is all exemplary, it is intended to provide further instruction to the application. Unless otherwise, all technology used herein and scientific terminology have the identical meanings being generally understood that with the application person of an ordinary skill in the technical field.
In this utility model, when not making contrary explanation, the noun of locality of use if " upper and lower " is usually for direction shown in the drawings, or for parts this on vertical, vertical or gravity direction; Similarly, for ease of understanding and describing, it is inside and outside that " inside and outside " refers to relative to the profile of each parts itself, but the above-mentioned noun of locality is not limited to this utility model.
The inaccurate problem of testing result in order to solve note detection device of the prior art, this utility model provides a kind of note detection device.
As shown in Figures 1 to 4, note detection device includes Magnetic Sensor, and Magnetic Sensor includes: body 10, for formed field region permanent magnet 20, for the magnetic strip information of real-time perception bank note and environmental information and produce the first signal multiple first chips 30, revise signal for real-time perception environmental information producing at least one revise chip 40 and for receiving and process the first signal and revising the signal processing chip 50 of signal; Permanent magnet 20 is arranged on body 10; Multiple first chips 30 are arranged in field region, and all first chips 30 are all arranged in parallel, and environmental information includes ambient temperature information and/or ambient humidity information and/or environmental noise information; Revise chip 40 and be in inside field region or outside; First signal is equal because environmental information changes the ambient signal variable quantity produced with the ambient signal variable quantity because of environmental information change generation revising signal, in signal processing chip 50, the first signal after change with change after revise signal do difference so that the first signal ambient signal variable quantity and correction signal ambient signal variable quantity be kept to zero mutually, difference is converted to secondary signal and outwards exports by signal processing chip 50 afterwards, the first chip 30 and revise chip 40 and electrically connect with signal processing chip 50 respectively.
By being arranged to the magnetic strip information of real-time perception bank note and environmental information on the Magnetic Sensor of note detection device and producing multiple first chips 30 of the first signal and revise at least one of signal for real-time perception environmental information producing and revise chip 40, first chip 30 and correction chip 40 electrically connect with signal processing chip 50 respectively, so that setting up stable annexation between the first chip 30 and correction chip 40 and signal processing chip 50, it is ensured that the first signal and correction signal are passed to the reliability of signal processing chip 50.
Wherein, first signal is equal because environmental information changes the ambient signal variable quantity produced with the ambient signal variable quantity because of environmental information change generation revising signal, owing to being provided with for receiving and process the first signal and revising the signal processing chip 50 of signal, after the first signal and correction signal are transferred into signal processing chip 50, process through signal processing chip 50, the first signal after change with change after revise signal do difference so that the first signal ambient signal variable quantity and correction signal ambient signal variable quantity be kept to zero mutually, difference is converted to secondary signal and outwards exports using the signal as the identification note true and false by signal processing chip 50 afterwards, thus eliminating environmental information to change the impact that Magnetic Sensor is produced, and then improve the accuracy of the testing result of note detection device.
Alternatively, signal processing chip 50 is difference amplifier. The circuit that difference amplifier and the wire being connected with input and the outfan of difference amplifier collectively form becomes differential amplifier circuit.
As shown in Figure 3, Magnetic Sensor also includes the first logic with shift control circuit for transmitting the first signal and for transmitting the second logic with shift control circuit revising signal, and the first chip 30 is electrically connected with signal processing chip 50 by the first logic with shift control circuit; Revise chip 40 to be electrically connected with signal processing chip 50 by the second logic with shift control circuit. Which ensure that the first signal and correction signal are smoothly delivered to signal processing chip 50, thus ensure that the job stability of note detection device.
In a not shown alternative embodiment, the circuit that the first logic with shift control circuit and the second logic with shift control circuit are all made up of shift register and logic switch, wherein, logic switch is the Signal-controlled switch of control circuit break-make.
In a not shown alternative embodiment, the first logic with shift control circuit is integrated in signal processing chip 50; Second logic with shift control circuit is integrated in signal processing chip 50. So, the circuit structure making Magnetic Sensor is more compact, and the signal processing chip 50 of Highgrade integration is more easily installed, and saves time and manpower that circuit is installed, improves the production efficiency of note detection device.
As shown in Figure 4, in an alternative embodiment of the present utility model, note detection device also includes the first earth element 80 and the second earth element 90, and the first chip 30 is by the first earth element 80 ground connection; Revise chip 40 by the second earth element 90 ground connection. So, ensure that when the first chip 30 can produce voltage when the magnetic strip information of perception bank note and environmental information, export with ensure that the first signal stabilization, when also ensuring that correction chip 40 perception environmental information, voltage can be produced, it is ensured that revise the output of signal stabilization ground; Thus ensure that the stability that note detection device detects.
Alternatively, the first earth element 80 and/or the second earth element 90 are earth resistance.
As shown in Figure 4, the first chip 30 includes the first Magnetosensing element 31, and the change in resistance of the first Magnetosensing element 31 is to produce the first signal; And/or correction chip 40 includes the second Magnetosensing element 41, the change in resistance of the second Magnetosensing element 41 is to produce to revise signal. So, when the first chip 30 perceives magnetic strip information and the environmental information of bank note, the resistance of the first Magnetosensing element 31 occurs immediately upon change to produce the first signal, equally, when revise chip perceive environmental information time, the resistance of the second Magnetosensing element 41 occur immediately upon change with produces revise signal, it is ensured that the first signal and revise signal stabilization, simultaneously produce, improve the sensitivity of Magnetic Sensor, it is ensured that the reliability of note detection device work.
Alternatively, first Magnetosensing element 31 and the second Magnetosensing element 41 are made by the adjustable sense magnetic material of resistance, owing to multiple first chips 30 are arranged in the field region that permanent magnet 20 produces, first Magnetosensing element 31 is subject to the effect in magnetic field produced by permanent magnet 20 all the time, when the magnetic field of permanent magnet 20 reaches certain numerical value, the sensitivity of the first Magnetosensing element 31 reaches a higher degree, so that when the first Magnetosensing element 31 perceives the magnetic strip information of bank note, the resistance of the first Magnetosensing element 31 can change, and the magnetic field intensity of magnetic strip information is more big, the change in resistance of the first Magnetosensing element 31 is more big. the change in resistance of the first Magnetosensing element 31 is to produce the first signal, the first chip 30 is made to have higher sensitivity when the magnetic strip information of perception bank note and environmental information, thus ensure that note detection device can accurately detect the power of magnetic signal, improve the work effectiveness of note detection device.
Owing to the change in resistance of the first Magnetosensing element 31 and the second Magnetosensing element 41 changes along with the magnetic strip information of perception bank note, its work process is similar to adjustable resistance, therefore, in the embodiment that figure 4 illustrates, represent the first Magnetosensing element 31 and the second Magnetosensing element 41 with the form of adjustable resistance.
Set forth that Magnetic Sensor of the present utility model eliminates the detailed process of environmental information with a specific embodiment in detail below.
As shown in Figure 4, when the signal processing chip 50 in this utility model is difference amplifier, assume that the first input value of the input of difference amplifier be V1 and the second input value is V2, the output valve of the outfan of difference amplifier is V, then the relational expression between the first input value and the second input value and output valve is: V=G �� (V1-V2), wherein, G is the amplification of difference amplifier.
When the first chip scanning is less than magnetic signal, when correction chip also senses less than magnetic signal, V1=c, V2=d, now V=G �� (V1-V2)=G �� (c-d).
When the first chip 30 perceives magnetic strip information and the environmental information of bank note, the resistance of the first Magnetosensing element 31 changes and produces the first signal, now, first input value of the input entering difference amplifier produced by the first signal, the numerical part assuming the impact on the first input value produced by the magnetic strip information of bank note is a, the numerical part of the impact on the first input value produced by environmental information is b, then now V1=c+a+b; Is equal due to the first signal because environmental information changes the ambient signal variable quantity produced with the ambient signal variable quantity because of environmental information change generation revising signal, therefore, now revising chip 40, to perceive environmental information identical with the environmental information that the first chip 30 perceives, the variable quantity that the resistance of the second Magnetosensing element 41 occurs is also identical with the change in resistance amount of the first Magnetosensing element 31, therefore, also it is b, now V2=d+b by the second input value of the entrance difference amplifier revising signal generation; So, the output V=G of differential amplifier circuit �� (V1-V2)=G �� (c+a+b-d-b)=G �� (c+a-d), it is seen then that difference amplifier effectively eliminates the impact that magnetism sensor is produced by environmental information.
As depicted in figs. 1 and 2, body 10 includes cavity and the opening connected with cavity, Magnetic Sensor also includes substrate 60 and protective cover 70, substrate 60 is arranged on opening part to be sealed in cavity by permanent magnet 20, and the first chip 30, correction chip 40 and signal processing chip 50 are arranged on the surface deviating from cavity side of substrate 60;Protective cover 70 is located on substrate 60 so that the first chip 30, correction chip 40 and signal processing chip 50 are accommodated in the protection intracavity that protective cover 70 is formed with substrate 60. So, the permanent magnet 20 of Magnetic Sensor is effectively protected in the cavity of body 10, it is to avoid note detection device in use permanent magnet 20 is damaged. Owing to being provided with protective cover 70, protective cover 70 is located on substrate 60 so that the first chip 30, correction chip 40 and signal processing chip 50 are accommodated in the protection intracavity that protective cover 70 is formed with substrate 60. So that the first chip 30 of sensitivity, correction chip 40 and signal processing chip 50 receive sealing protection; avoid the chip component of these sensitivities and be subject to extraneous humid air and dust must affect and lose efficacy, thus improve the reliability of note detection device work.
Protective cover 70 is made by not having magnetic material, so, it is to avoid protective cover 70 self produce magnetic field on first chip 30, revise chip 40 and signal processing chip 50 produces impact, it is ensured that the reliability of note detection device work.
Alternatively, protective cover 70 is made by not having magnetic metal material or is made up of plastic material.
In a not shown alternative embodiment, the lower surface of substrate 60 is provided with socket, thus being effectively guaranteed the first signal, revising the transmission stability of signal and secondary signal.
As in figure 2 it is shown, revise chip 40 between signal processing chip 50 and the first chip 30. So efficiently differentiate out multiple first chip 30 and revised chip 40, thus when correction chip 40 damages and needs to change, maintainer can be able to conveniently find the installation site of the first chip 30, and then improves the maintenance convenience of note detection device.
In a not shown alternative embodiment, certainly, in order to reasonably utilize the installing space on substrate 60, the volume of Magnetic Sensor is reduced on the whole, any position on the substrate 60 guaranteeing outside revising chip 40 is in the field region of permanent magnet 20.
Alternatively, when the distance revised between chip 40 and bank note makes correction chip 40 perception less than, under the premise of the magnetic strip information of bank note, revising chip 40 and also be able to be on the substrate 60 within the field region of permanent magnet 20.
As shown in Figure 4, each first chip 30 is in series with a construction of switch respectively, determines the number of the first chip 30 come into operation according to the open/close states of each construction of switch. So, can reasonably regulate the magnetic strip information of the first chip 30 perception bank note and the sensitivity of environmental information, and may insure that magnetic sensing device still is able to perceive the magnetic strip information of bank note and environmental information exactly and produce the first signal under part the first chip 30 with damaging inefficacy situation.
Alternatively, note detection device is the one in paper money counter, cash inspecting machine or cleaning-sorting machine.
Alternatively, permanent magnet 20 is made up of alloy permanent magnet material or ferrite permanent-magnet materials.
It should be noted that term used herein above merely to describe detailed description of the invention, and be not intended to the restricted root illustrative embodiments according to the application. As used herein, unless the context clearly indicates otherwise, otherwise singulative is also intended to include plural form, in addition, it is to be further understood that, when using term " comprising " and/or " including " in this manual, it indicates existing characteristics, step, work, device, assembly and/or their combination.
It should be noted that term " first " in the description and claims of this application and above-mentioned accompanying drawing, " second " etc. are for distinguishing similar object, without being used for describing specific order or precedence. Should be appreciated that the data of so use can be exchanged in the appropriate case, in order to presently filed embodiment described herein can with except here diagram or describe those except order implement.
The foregoing is only preferred embodiment of the present utility model, be not limited to this utility model, for a person skilled in the art, this utility model can have various modifications and variations. All within spirit of the present utility model and principle, any amendment of making, equivalent replacement, improvement etc., should be included within protection domain of the present utility model.
Claims (11)
1. a note detection device, it is characterised in that described note detection device includes Magnetic Sensor, and described Magnetic Sensor includes:
Body (10);
For forming the permanent magnet (20) of field region, described permanent magnet (20) is arranged on described body (10);
For the magnetic strip information of real-time perception bank note and environmental information multiple first chips (30) producing the first signal, multiple described first chips (30) are arranged in described field region, and all described first chips (30) is all arranged in parallel, described environmental information includes ambient temperature information and/or ambient humidity information and/or environmental noise information;
Described in real-time perception environmental information and produce revise signal at least one revise chip (40), described correction chip (40) is in inside described field region or outside;
For receiving and process the signal processing chip (50) of described first signal and described correction signal, described first signal is equal because described environmental information changes the ambient signal variable quantity of generation with the ambient signal variable quantity because of the change generation of described environmental information of described correction signal, in described signal processing chip (50), described first signal after change with change after described correction signal do difference so that the ambient signal variable quantity of described first signal and the ambient signal variable quantity of described correction signal are kept to zero mutually, difference is converted to secondary signal and outwards exports by described signal processing chip (50) afterwards, described first chip (30) and described correction chip (40) electrically connect with described signal processing chip (50) respectively.
2. note detection device according to claim 1, it is characterised in that described signal processing chip (50) is difference amplifier.
3. note detection device according to claim 1, it is characterised in that described Magnetic Sensor also includes:
For transmitting the first logic with shift control circuit of described first signal, described first chip (30) is electrically connected with described signal processing chip (50) by described first logic with shift control circuit;
For transmitting the second logic with shift control circuit of described correction signal, described correction chip (40) is electrically connected with described signal processing chip (50) by described second logic with shift control circuit.
4. note detection device according to claim 1, it is characterised in that described Magnetic Sensor also includes:
For transmitting the first logic with shift control circuit of described first signal, described first logic with shift control circuit is integrated in described signal processing chip (50);
For transmitting the second logic with shift control circuit of described correction signal, described second logic with shift control circuit is integrated in described signal processing chip (50).
5. note detection device according to claim 1, it is characterised in that described note detection device also includes:
First earth element (80), described first chip (30) is by described first earth element (80) ground connection; And/or
Second earth element (90), described correction chip (40) is by described second earth element (90) ground connection.
6. note detection device according to claim 5, it is characterized in that, described note detection device also includes the first earth element (80) and the second earth element (90), and described first earth element (80) and/or described second earth element (90) are earth resistance.
7. note detection device according to any one of claim 1 to 6, it is characterised in that
Described first chip (30) includes the first Magnetosensing element (31), and the change in resistance of described first Magnetosensing element (31) is to produce described first signal; And/or
Described correction chip (40) includes the second Magnetosensing element (41), and the change in resistance of described second Magnetosensing element (41) is to produce described correction signal.
8. note detection device according to claim 1, it is characterised in that described body (10) includes cavity and the opening connected with described cavity, and described Magnetic Sensor also includes:
Substrate (60), described substrate (60) is arranged on described opening part to be sealed in described cavity by described permanent magnet (20), and described first chip (30), described correction chip (40) and described signal processing chip (50) are arranged on the surface deviating from described cavity side of described substrate (60);
Protective cover (70), described protective cover (70) is located on described substrate (60) so that described first chip (30), described correction chip (40) and described signal processing chip (50) to be accommodated in the protection intracavity that described protective cover (70) and described substrate (60) are formed.
9. note detection device according to claim 8, it is characterised in that described correction chip (40) is positioned between described signal processing chip (50) and described first chip (30).
10. note detection device according to claim 1, it is characterized in that, each described first chip (30) is in series with a construction of switch respectively, determines the number of described first chip (30) come into operation according to the open/close states of each described construction of switch.
11. note detection device according to claim 1, it is characterised in that described note detection device is the one in paper money counter, cash inspecting machine or cleaning-sorting machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521140305.9U CN205302448U (en) | 2015-12-31 | 2015-12-31 | Paper currency detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521140305.9U CN205302448U (en) | 2015-12-31 | 2015-12-31 | Paper currency detection device |
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| Publication Number | Publication Date |
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| CN205302448U true CN205302448U (en) | 2016-06-08 |
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| CN201521140305.9U Active CN205302448U (en) | 2015-12-31 | 2015-12-31 | Paper currency detection device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105488896A (en) * | 2015-12-31 | 2016-04-13 | 威海华菱光电股份有限公司 | Bank note detection apparatus |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105488896A (en) * | 2015-12-31 | 2016-04-13 | 威海华菱光电股份有限公司 | Bank note detection apparatus |
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