CN204539111U - Inductance approach switch - Google Patents
Inductance approach switch Download PDFInfo
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- CN204539111U CN204539111U CN201520181254.8U CN201520181254U CN204539111U CN 204539111 U CN204539111 U CN 204539111U CN 201520181254 U CN201520181254 U CN 201520181254U CN 204539111 U CN204539111 U CN 204539111U
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Abstract
The utility model discloses a kind of inductance approach switch, it comprises the double oscillator of twin coil composition, and the resonance wave signal of double oscillator gives corresponding window comparator respectively.Twin-channel window comparator output signal flows to two microcontrollers respectively, and two microcontrollers, through relatively judging two window comparator signals, jointly provide output control signal and carry out control output to output unit.Adopt interlocking structure circuit between two output units, increase the fail safe exported.In addition, diagnostic function is set by binary channels and realizes high diagnosis coverage rate, diagnosis comprises the microcontroller that binary channels window comparator signal is input to single channel and compares diagnosis, carry out exchanges data comparative diagnoses by communication between two passage microcontrollers, and output unit feeds back to respective channel single-chip microcomputer and carries out signal diagnosis.
Description
Technical field
The utility model belongs to safe proximity switch technical field, particularly relates to a kind of inductance approach switch.
Background technology
Inductance approach switch can detect the close of metal object when need not directly contact, there is mechanical wearing character, be particularly useful for the occasion of high switching frequency, therefore up to the present, the range of application of proximity switch is increasingly extensive, and the development of himself and the speed of innovation are also extremely rapid.
In order to meet system requirements that are highly reliable, high safety grade requirement, need further to develop existing inductance approach switch.
Summary of the invention
The purpose of this utility model is to provide a kind of inductance approach switch, to meet the system requirements required highly reliable, the high safety grade of inductance approach switch.
In order to realize the purpose of this utility model, the utility model provides a kind of inductance approach switch, comprise can complete independently close to the detection of metal object and the first passage of output function and second channel, described first passage comprises the first alternator resonant ripple signal input unit, first window comparator, first microcontroller processing unit, first output unit, described second channel comprises the second alternator resonant ripple signal input unit, Second Window comparator, second microcontroller processing unit, second output unit, described first alternator resonant ripple signal input unit comprises the first oscillator, the alternator resonant ripple signal input unit of described second channel comprises the second oscillator, described first oscillator and the second oscillator are twin coil composition double oscillator, the resonance wave signal of described first oscillator sends to first window comparator, the resonance wave signal of described second oscillator sends to Second Window comparator, described first window comparator and Second Window comparator all output signal the first microcontroller processing unit and the second microprocessor processes unit, described first microcontroller processing unit and the second microprocessor processes unit judge through comparing the signal of first window comparator and the output of Second Window comparator, jointly provide output control signal and carry out control output to the first output unit and the second output unit.
Wherein, exchanges data comparative diagnoses is carried out by communication between described first microcontroller processing unit and the second microcontroller processing unit.
Wherein, described first output unit and the second output unit, respectively to described first microcontroller processing unit and the second microcontroller processing unit feedback signal, carry out signal diagnosis.
The utility model, compared with prior art, adopts two coil configuration, and adopts interlocking structure circuit between two output units, increase the fail safe exported; In addition, diagnostic function is set by binary channels and realizes high diagnosis coverage rate, diagnosis comprises the microcontroller that binary channels window comparator signal is input to single channel and compares diagnosis, carry out exchanges data comparative diagnoses by communication between two passage microcontrollers, and output unit feeds back to respective channel single-chip microcomputer and carries out signal diagnosis; The safety integrity level of EN/ISO 13849-1PL e and IEC61508 SIL3 can be met.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
In order to make the purpose of this utility model, technical scheme and beneficial effect clearly understand, below in conjunction with embodiment, the utility model is further elaborated.Should be understood to specific embodiment described herein only in order to explain the utility model, be not limited to protection range of the present utility model.
As shown in Figure 1, the utility model embodiment comprises two passages, each passage by alternator resonant ripple signal input unit, window comparator and microcontroller processing unit and output unit composition, can complete independently close to the detection of metal object and output function.The course of work is twin coil composition double oscillator, and the resonance wave signal of double oscillator gives corresponding window comparator respectively.Twin-channel window comparator output signal flows to two microcontrollers respectively, and two microcontrollers, through relatively judging two window comparator signals, jointly provide output control signal and carry out control output to output unit.Adopt interlocking structure circuit between two output units, increase the fail safe exported.In addition, diagnostic function is set by binary channels and realizes high diagnosis coverage rate, diagnosis comprises the microcontroller that binary channels window comparator signal is input to single channel and compares diagnosis, carry out exchanges data comparative diagnoses by communication between two passage microcontrollers, and output unit feeds back to respective channel single-chip microcomputer and carries out signal diagnosis.
In order to meet system requirements that are highly reliable, high safety grade requirement, the utility model can detect the accurate position of metal object and provide corresponding output, thus ensures the safety integrity level of whole system.Reaction time of the present utility model is shorter, has self-diagnosing function, and reliability is higher, energy and alarm when product self goes wrong, and stops exporting, avoids occurring misoperation and cause security incident; The safety integrity level of EN/ISO 13849-1PL e and IEC61508 SIL3 can be met.
The above is only preferred implementation of the present utility model; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection range of the present utility model.
Claims (3)
1. an inductance approach switch, it is characterized in that, comprise can complete independently close to the detection of metal object and the first passage of output function and second channel, described first passage comprises the first alternator resonant ripple signal input unit, first window comparator, first microcontroller processing unit, first output unit, described second channel comprises the second alternator resonant ripple signal input unit, Second Window comparator, second microcontroller processing unit, second output unit, described first alternator resonant ripple signal input unit comprises the first oscillator, the alternator resonant ripple signal input unit of described second channel comprises the second oscillator, described first oscillator and the second oscillator are twin coil composition double oscillator, the resonance wave signal of described first oscillator sends to first window comparator, the resonance wave signal of described second oscillator sends to Second Window comparator, described first window comparator and Second Window comparator all output signal the first microcontroller processing unit and the second microprocessor processes unit, described first microcontroller processing unit and the second microprocessor processes unit judge through comparing the signal of first window comparator and the output of Second Window comparator, jointly provide output control signal and carry out control output to the first output unit and the second output unit.
2. inductance approach switch according to claim 1, is characterized in that, carries out exchanges data comparative diagnoses between described first microcontroller processing unit and the second microcontroller processing unit by communication.
3. inductance approach switch according to claim 1, is characterized in that, described first output unit and the second output unit, respectively to described first microcontroller processing unit and the second microcontroller processing unit feedback signal, carry out signal diagnosis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520181254.8U CN204539111U (en) | 2015-03-27 | 2015-03-27 | Inductance approach switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520181254.8U CN204539111U (en) | 2015-03-27 | 2015-03-27 | Inductance approach switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204539111U true CN204539111U (en) | 2015-08-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520181254.8U Active CN204539111U (en) | 2015-03-27 | 2015-03-27 | Inductance approach switch |
Country Status (1)
| Country | Link |
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| CN (1) | CN204539111U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108028649A (en) * | 2015-09-24 | 2018-05-11 | Ifm电子股份有限公司 | Inductive proximity switch with pre- damping element |
| CN111337986A (en) * | 2020-05-18 | 2020-06-26 | 上海索迪龙自动化有限公司 | Sensor device and detection system |
-
2015
- 2015-03-27 CN CN201520181254.8U patent/CN204539111U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108028649A (en) * | 2015-09-24 | 2018-05-11 | Ifm电子股份有限公司 | Inductive proximity switch with pre- damping element |
| CN108028649B (en) * | 2015-09-24 | 2022-04-22 | Ifm电子股份有限公司 | Inductive proximity switch with pre-damped element |
| CN111337986A (en) * | 2020-05-18 | 2020-06-26 | 上海索迪龙自动化有限公司 | Sensor device and detection system |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: No. 12 Saida Fourth Branch Road, Xiqing Economic and Technological Development Zone, Xiqing District, Tianjin, 300385 Patentee after: Tianjin Yike Automation Co.,Ltd. Address before: 300385 No. 12, Saida Four Branches Road, Xiqing Economic Development Zone, Xiqing District, Tianjin Patentee before: ELCO (TIANJIN) ELECTRONICS Co.,Ltd. |