CN205210992U - Operation tablet safety interlocking device - Google Patents
Operation tablet safety interlocking device Download PDFInfo
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- CN205210992U CN205210992U CN201520907797.3U CN201520907797U CN205210992U CN 205210992 U CN205210992 U CN 205210992U CN 201520907797 U CN201520907797 U CN 201520907797U CN 205210992 U CN205210992 U CN 205210992U
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- card
- operation board
- tablet
- equipment
- write line
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Abstract
The utility model relates to an operation tablet safety interlocking device belongs to electric field, and the device is applicable to each big machinery and electrical equipment, the device has simplified original loaded down with trivial details maintenance and has traded the tablet system, makes preparation work before the operation clarity that becomes, utilizes contact IC -card encryption technology, has realized the uniqueness of operation tablet, utilize contact IC -card password output technique, it just can the operating equipment to have realized only relying on the operation tablet, prevents bodily injury, system principle is simple, and contact IC -card technique is more ripe, and the material price is lower, easily realizes popularization and application on a large scale, and at operation tablet during not at the operation panel, to the operation panel processing of cutting off the power supply, fundamentally stops the problem of overhaul of the equipments in -process maloperation.
Description
Technical field
The utility model belongs to electric field, is specifically related to a kind of operation board safety interlock.
Background technology
Upkeep operation changes that board system is all kinds of electromechanical equipment, guarantee an important safety safeguard of maintainer's personal safety in motor device upkeep operation.Apply very general in each unit of industrial enterprise.
In inspection operation, needing execution to change board operation, its objective is to prevent operating personnel in maintenance process from carrying out maloperation.This process be upkeep operation personnel before repair apparatus, change with maintenance board and the operation board of operating personnel.Operating personnel do not operate board in hand, can not to operate.Until after upkeep operation, both sides' trump card gains, and can carry out normal production operation.But it is a kind of safety regulation system that existing upkeep operation changes board system, in upkeep operation engineering, even perform this kind of system, fundamentally can not prevent the maloperation in maintenance process, equipment also may be misused.
Utility model content
For the deficiencies in the prior art, the utility model proposes a kind of operation board safety interlock, to reach the object fundamentally stopping maloperation problem in overhaul of the equipments process.
A kind of operation board safety interlock, this device is installed on independent equipment to be operated, this device comprises: operation board, read write line and contactor, wherein, described operation board is connected with read write line by socket, the output terminal of read write line connects contactor, and contactor connects the power supply of equipment to be operated.
Described read write line inside is provided with microprocessor and crypto-operation processing unit.
Described operation board adopts Contact Type Ic Card.
Described Contact Type Ic Card is divided into: be provided with the operation board of the corresponding password of designated equipment and be provided with the perfect after-sales service of the corresponding password of multiple equipment.
The utility model advantage:
The utility model proposes a kind of operation board safety interlock, thus ensure the security of personnel in upkeep operation process; Be applicable to each large machinery and electrical equipment; This device simplifies original loaded down with trivial details maintenance and changes board system, makes the preliminary work before operation become clear, utilizes Contact Type Ic Card encryption technology, achieves the uniqueness of operation board; Utilize Contact Type Ic Card password export technique, achieving only can operating equipment with operation board, prevents personal injury; System principle is simple, and Contact Type Ic Card Technical comparing is ripe, and material price is lower, is easy to realize large-scale propagation and employment, when operating board not at operator's console, carrying out power down process, fundamentally stop the problem of maloperation in overhaul of the equipments process to operator's console.
Accompanying drawing explanation
Fig. 1 is the operation board safety interlock structural representation of a kind of embodiment of the utility model.
Embodiment
Below in conjunction with accompanying drawing, a kind of embodiment of the utility model is described further.
In the present embodiment, as shown in Figure 1, operation board safety interlock, this device is installed on independent equipment to be operated, and namely this device adopts unit control type, implements fairly simple; This device comprises: operation board, read write line and contactor, and wherein, described operation board is connected with read write line by socket, and the output terminal of read write line connects contactor, and contactor connects the power supply of equipment to be operated; Described read write line inside is provided with microprocessor and crypto-operation processing unit.
In the present embodiment, described operation board adopts Contact Type Ic Card, and IC-card adopts the MIFAR1 card of Philip, and the chip adopted in IC-card module for reading and writing is MFRC500, adopts AT89C51 type single-chip microcomputer to be process chip on the microprocessor; Because the function of IC-card aspect can with MFRC500 process, processor is only responsible for read-write to read write line and external communication, so this single-chip microcomputer meets above-mentioned functions completely;
In the present embodiment, described Contact Type Ic Card is divided into: be provided with the operation board of the corresponding password of designated equipment and be provided with the perfect after-sales service of the corresponding password of multiple equipment;
The described operation board being provided with the corresponding password of designated equipment: the IC-card form upkeep operation board insertion read write line that every platform equipment is unique, after read write line confirms that encrypted message is correct, peripheral interface issues contactor signal; Contactor controls power transmission and the operation that power supply controls this equipment;
The described perfect after-sales service being provided with the corresponding password of multiple equipment: card is lost for avoiding maintainer or operating personnel, cause equipment cannot power transmission, can not produce, therefore the application proposes a kind of general emergency card, namely this card can replace operation board or the power supply board of all sites, as Emergency use;
In the present embodiment, the Mifare1 card adopted, the memory capacity of this card is 8Kbit, this card has 16 sectors, 4 pieces, each sector district, every block 16 byte, take block as access unit, there are independently one group of password and access control in each sector, and in card, data store by particular memory form, as shown in table 1:
Table 1
In the present embodiment, in table 1, information is: Card Type comprises: perfect after-sales service-0x01, generic card-0x00; Switch control rule comprises: open as-0x01, cannot open as-0x00; Item id number: form a unique sequence number by 32, the object of item id is the card intercommunication in order to prevent between multiple project; Device number: each byte, scope 1 to 255, uses two bytes, if can expand not;
In the present embodiment, perfect after-sales service only writes the type of card and No. ID other bytes write 0xff, and the card sending system of each project has a fixing item id number, in write IC-card; Such perfect after-sales service can open all devices, and the device number on IC-card is set to 0x01 with number corresponding words switch control rule correctly of the card reader on equipment, otherwise is set to 0x00; Perfect after-sales service and the normal difference controlled is realized with this;
Because this system needs to utilize the cryptographic function of Contact Type Ic Card to realize the mutual uncurrent function of each equipment card, therefore the chip part logic encryption card of Contact Type Ic Card, it has security control logic, and security performance is better; And adopt the memory technologies such as ROM, PROM, EEPROM simultaneously; There is certain function of keeping secret, and price comparatively CPU card is low, be easy to promote;
Contact Type Ic Card interfacing is read write line, and can realize identification that IC-card inserts/exit and control, IC-card enters/exit radio-frequency (RF) identification scope; Realize the exchanges data with card, and provide corresponding control signal to provide respective encrypted/decryption processing and key management mechanism for enciphered data system; External read write line is taked in the present embodiment;
By the operation board of IC-card form or power supply board plug-in card to CPU electrification reset, whether sufficiently automatically detect battery, and export corresponding signal through PFO end; CPU inquires about this pin level, carries out differentiation process; Then Card Reader and differentiate card legitimacy, password, authority, etc. whether meet the requirements; If meet, by time and the write of insertion card card number; Output pin output low level, amplifies the electromagnet driving contactor, reaches the object of power supply to the device through transistor.
Claims (4)
1. an operation board safety interlock, it is characterized in that, this device is installed on independent equipment to be operated, this device comprises: operation board, read write line and contactor, wherein, described operation board is connected with read write line by socket, and the output terminal of read write line connects contactor, and contactor connects the power supply of equipment to be operated.
2. operation board safety interlock according to claim 1, is characterized in that, described read write line inside is provided with microprocessor and crypto-operation processing unit.
3. operation board safety interlock according to claim 1, is characterized in that, described operation board adopts Contact Type Ic Card.
4. operation board safety interlock according to claim 3, it is characterized in that, described Contact Type Ic Card is divided into: be provided with the operation board of the corresponding password of designated equipment and be provided with the perfect after-sales service of the corresponding password of multiple equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520907797.3U CN205210992U (en) | 2015-11-16 | 2015-11-16 | Operation tablet safety interlocking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520907797.3U CN205210992U (en) | 2015-11-16 | 2015-11-16 | Operation tablet safety interlocking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205210992U true CN205210992U (en) | 2016-05-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520907797.3U Active CN205210992U (en) | 2015-11-16 | 2015-11-16 | Operation tablet safety interlocking device |
Country Status (1)
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| CN (1) | CN205210992U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112308242A (en) * | 2020-10-14 | 2021-02-02 | 首钢京唐钢铁联合有限责任公司 | Operation board management method and system |
-
2015
- 2015-11-16 CN CN201520907797.3U patent/CN205210992U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112308242A (en) * | 2020-10-14 | 2021-02-02 | 首钢京唐钢铁联合有限责任公司 | Operation board management method and system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 114001 Anshan District, Liaoning, No. 219 Road, No. 39, Tiedong Patentee after: Anshan Iron and Steel Group Mining Co., Ltd. Address before: 114001 Anshan District, Liaoning, No. 219 Road, No. 39, Tiedong Patentee before: Anshan Iron & Steel Group Mining Co., Ltd. |