CN208506544U - A kind of case change measure and control device that can automatically switch direct-flow input signal type - Google Patents
A kind of case change measure and control device that can automatically switch direct-flow input signal type Download PDFInfo
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- CN208506544U CN208506544U CN201820861477.2U CN201820861477U CN208506544U CN 208506544 U CN208506544 U CN 208506544U CN 201820861477 U CN201820861477 U CN 201820861477U CN 208506544 U CN208506544 U CN 208506544U
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Abstract
The utility model discloses a kind of casees that can automatically switch direct-flow input signal type to become measure and control device, including cabinet, the positive side of cabinet is hinged with case lid, the positive middle part of case lid is equipped with display screen, the positive side of case lid is equipped with connection lock, the two sides of cabinet are equipped with radiator window, box house has been equipped with the first mounting plate, second mounting plate and third mounting plate, first mounting plate top is fixed with signal collector and wireless signal transceiver, second mounting plate top is fixed with signal shifter and signal conditioner, third mounting plate top is equipped with data collector and central processing unit, a kind of case that can automatically switch direct-flow input signal type of the utility model becomes measure and control device, automatically switch corresponding hardware circuit according to external dc input signal types to meet flexibility of the device in each project application, reduce the customization of product , facilitate designer to use, meet the change or transformation demand at complex engineering scene.
Description
Technical field
The utility model relates to a plants cases to become measure and control device, in particular to a kind of to automatically switch direct-flow input signal type
Case become measure and control device, belong to electrical equipment technical field.
Background technique
In order to guarantee the reliability of box transformer station high-voltage side bus, case becomes measure and control device and joins to operations such as its temperature, humidity, pressure
Several real-time monitorings has been essential configuration.These usual important operating parameters are acquired by sensor to be become through transmitter
It changes DC small signal into and is sent to case change measure and control device.Type can be summarized as three classes both: 4 ~ 20mA, 0 ~ 5V and PT100.However
There is the access style of direct current signal the demand of multiplicity in each engineering site, existing needs to configure seed type access,
Even three kinds of two kinds of some need is simultaneously deposited, and signal with different type just needs different hardware circuits.However current case becomes observing and controlling
Device can not flexibly switch in the configuration of direct-flow input signal type, can only be become using fixed hardware circuit, some casees and be surveyed
Controlling device is to be fixed into only have access a kind of direct current signal, has plenty of and fixes two kinds, but is all difficult to accomplish that each paths are in office
Input direct-current type required for what engineering phase is freely configured to.In this regard, this for engineering design, product export debugging and
Engineering Late reformation or change all bring many inconvenience.
Utility model content
The purpose of this utility model is to provide a kind of casees that can automatically switch direct-flow input signal type to become measure and control device,
It can not spirit in the configuration of direct-flow input signal type to solve current case change measure and control device mentioned above in the background art
Switching living is difficult to accomplish that each paths are freely configured to required input direct-current type in any engineering phase, and general
Case become measure and control device structure is complicated, be not easy to installation and removal the problem of.
To achieve the above object, the utility model provides the following technical solutions: a kind of to automatically switch direct-flow input signal
The case of type becomes measure and control device, including cabinet, the positive side of cabinet are hinged with case lid, and the positive middle part of case lid is set
There is display screen, the positive side of case lid is equipped with connection lock, and the two sides of the cabinet are equipped with radiator window, the box house
Two sides are equipped with three groups of engaging slots, and by the engaging slot, successively engaging has the first mounting plate, the second peace to the cabinet from top to bottom
Loading board and third mounting plate, the side on first mounting plate top are fixedly installed with signal collector, first mounting plate
The other side on top is fixedly installed with wireless signal transceiver, and the side on second mounting plate top is fixedly installed with signal and cuts
Parallel operation, the other side on second mounting plate top are fixedly installed with signal conditioner, the side on third mounting plate top
It is fixedly installed with data collector, the inside of the data collector is equipped with A/D chip and FLASH chip, the third mounting plate
The other side on top is fixedly installed with central processing unit, and the bottom end of the box house is fixedly installed with battery, the signal
Collector and the signal shifter are electrically connected, and the signal shifter and the data collector are electrically connected, described aobvious
Display screen, the wireless signal transceiver and the data collector are electrically connected with the central processing unit.
As a kind of optimal technical scheme of the utility model, first mounting plate, second mounting plate and described
The top of third mounting plate is equidistantly equipped with several flutings, and the both ends of the fluting are fixedly connected with fixed block by screw.
As a kind of optimal technical scheme of the utility model, the display screen, the signal collector, the wireless communication
Number transceiver, the signal shifter, the signal conditioner, the data collector and the central processing unit pass through outer
Switch is connect to be electrically connected with the battery.
As a kind of optimal technical scheme of the utility model, the side of the bottom of box is equipped with charging interface, described
Charging interface and the battery are electrically connected.
As a kind of optimal technical scheme of the utility model, the top of the wireless signal transceiver is equipped with signal transmitting and receiving
Antenna, the signal transmitting and receiving antenna are inserted through the top of cabinet.
As a kind of optimal technical scheme of the utility model, the back side of the cabinet is equipped with Wiring port, the wiring
Port is connect with the signal collector telecommunications.
As a kind of optimal technical scheme of the utility model, the model 702M12- of the wireless signal transceiver
WIP67, the model HDMI-301 of the signal shifter, the model XA90-BZ2704 of the signal conditioner, the number
According to the model HT-3600 of collector, the model LGA1156 of the central processing unit.
Compared with prior art, the utility model has the beneficial effects that the utility model is a kind of, to automatically switch direct current defeated
The case for entering signal type becomes measure and control device, automatically switches corresponding hardware circuit according to external dc input signal types to meet
Flexibility of the device in each project application, reduces the customization of product, designer is facilitated to use, and simplifies the tune of product export
Trial work is made, and the change or transformation demand at complex engineering scene are met；By the setting of internal structure, facilitate the installation of interior instrument
And disassembly, facilitate maintenance；It is arranged by the first mounting plate, the second mounting plate, third mounting plate and radiator window, facilitates the device
Heat dissipation.
Detailed description of the invention
Fig. 1 is the utility model external structure schematic diagram；
Fig. 2 is the schematic diagram of internal structure of the utility model；
Fig. 3 is the structural schematic diagram of the first mounting plate of the utility model；
Fig. 4 is the module map of the utility model.
In figure: 1, cabinet；2, case lid；3, display screen；4, connection lock；5, radiator window；6, the first mounting plate；7, the second installation
Plate；8, third mounting plate；9, signal collector；10, wireless signal transceiver；11, signal shifter；12, signal conditioner；
13, data collector；14, central processing unit；15, battery；16, signal transmitting and receiving antenna；17, it slots；18, fixed block.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Fig. 1-4 is please referred to, the utility model provides a kind of case change observing and controlling that can automatically switch direct-flow input signal type
Device, including cabinet 1, the positive side of cabinet 1 are hinged with case lid 2, and the positive middle part of case lid 2 is equipped with display screen 3, and case lid 2 is just
The side in face is equipped with connection lock 4, and the two sides of cabinet 1 are equipped with radiator window 5, and the two sides inside cabinet 1 are equipped with three groups of engaging slots, cabinet
1 passes through engaging slot, and successively engaging has the first mounting plate 6, the second mounting plate 7 and third mounting plate 8, the first mounting plate 6 from top to bottom
The side on top is fixedly installed with signal collector 9, and setting becomes in measure and control device cabinet 1 in case for providing to external terminal
Son, each input channel provide three terminals, can access 4 ~ 20mA, 0 ~ 5V, PT100 three types signal, wherein access 4 ~
The first two terminal is used when 20mA, 0 ~ 5V signal, the last one terminal empties.3 are then used when accessing PT100 three-wire system thermal resistance
A terminal, common end and correction line end are respectively connected to latter two terminal in channel, and another single line accesses first terminal.It inserts simultaneously
CPU respective pin is connected using plug terminal inside part, the other side on 6 top of the first mounting plate is fixedly installed with wireless signal receipts
Device 10 is sent out, the side on 7 top of the second mounting plate is fixedly installed with signal shifter 11, the switching, filtering, tune for front end signal
It is whole, stablized, the clean signal for meeting sampling request, signal shifter 11 is using with 5 groups of access capability analog switch cores
Piece, the switching of every group of switch is controlled with 14 pin level state of central processing unit, and cooperate achievable every kind of signal type pair
Answer the switching of hardware circuit.Conditioning circuit uses prime TVS carrying out surge protection, and the processing mode of rear two stage filter obtains reliable
Sampled signal, the other side on 7 top of the second mounting plate are fixedly installed with signal conditioner 12, the side on 8 top of third mounting plate
It is fixedly installed with data collector 13, the inside of data collector 13 is equipped with A/D chip and FLASH chip, uses two panels 16 4
The A/D chip of channel input simultaneously there is high-speed serial communication interface to connect with central processing unit 14, and two panels AD sampling A/D chip is to share
Bus mode and 14 interface of central processing unit, sampled data and control command are by bus transfer, while A/D chip needs have
I/O pin input capability at least all the way judges signal to access thermal resistance broken string, and the other side on 8 top of third mounting plate is solid
Dingan County is equipped with central processing unit 14, and the bottom end inside cabinet 1 is fixedly installed with battery 15, and signal collector 9 and signal switch
Device 11 is electrically connected, and signal shifter 11 and data collector 13 are electrically connected, display screen 3,10 sum number of wireless signal transceiver
It is electrically connected with central processing unit 14 according to collector 13, automatically switches corresponding hardware according to external dc input signal types
Circuit meets flexibility of the device in each project application, reduces the customization of product, designer is facilitated to use, and simplifies and produces
The debugging efforts of product factory meet the change or transformation demand at complex engineering scene.
Preferably, the top of the first mounting plate 6, the second mounting plate 7 and third mounting plate 8 is equidistantly equipped with several flutings 17,
The both ends of fluting 17 are fixedly connected with fixed block 18 by screw, behind add beneficial effect, facilitate the installation of interior instrument with
Disassembly, facilitates maintenance.
Preferably, display screen 3, signal collector 9, wireless signal transceiver 10, signal shifter 11, signal conditioner
12, data collector 13 and central processing unit 14 are electrically connected by outside connected switch and battery 15, are guaranteeing each electrical appliance just
Often work.
Preferably, the side of 1 bottom of cabinet is equipped with charging interface, and charging interface and battery 15 are electrically connected, conveniently give
Battery 15 charges.
Preferably, the top of wireless signal transceiver 10 is equipped with signal transmitting and receiving antenna 16, and signal transmitting and receiving antenna 16 is inserted through
The top of cabinet 1 conveniently transmits a signal to computer client.
Preferably, the back side of cabinet 1 is equipped with Wiring port, and Wiring port is connect with 9 telecommunications of signal collector, facilitates signal
Collector 9 receives external dc input signal.
Preferably, the model 702M12-WIP67 of wireless signal transceiver 10, the model HDMI- of signal shifter 11
301, the model XA90-BZ2704 of signal conditioner 12, the model HT-3600 of data collector 13, central processing unit 14
Model LGA1156, guarantee the operation of each instrument.
When specifically used, a kind of case that can automatically switch direct-flow input signal type of the utility model becomes measure and control device, work
It is as described below to make principle:
1. subject logic: the direct current channel allocation list stored in FLASH chip is read when device starts, if without having protected
The allocation list deposited then uses default configuration table in program.It is then updated according to the channel configuration information of allocation list each in display menu
The direct current type in a channel shows that 5 switches for controlling each channel analogy switch chip carry out corresponding set, completes channel
The hardware circuit of type switches, then successively initializes 2 A/D chip associated configuration registers by high-speed serial channel, completes AD
Chip setting, AD sampling A/D chip are started to work.The sampled data that each channel is successively read in major cycle does extreme value and is averaged
Value processing, is sent to central processing unit 14, calculates corresponding current or voltage or temperature value.If it is thermal resistance channel, then
Need first to read the current broken string Status Flag of A/D chip.If in thermal resistance signal broken string state, by the temperature of display
Value is adjusted to maximum value, and provides thermal resistance broken string alarm, the channel number of alarm parameter mark broken string.In addition same in major cycle
When need to monitor the variation of direct current channel allocation list, if had altered, immediately stop A/D chip work, further according to allocation list believe
Breath does the above initial work.Direct current channel type is completed in the running real-time switching of device.
2. display and communication unit interface: configuration interface docking display and the communication unit of direct current channel table are provided, for
No matter on the spot and remote operation the setting of direct current channel type, requires permission and Password Management, premeditated or non-premeditated to prevent
Artificial destruction.Simultaneously for needing to carry out mutual exclusion management on the spot with remote operation, to prevent conflict operation.Data are provided to show
And fault alarm interface, for being shown on the spot with the data on distant place backstage and alarm is checked.
3. mistake and alarm logic: direct current channel allocation list information is stored in FLASH chip, belongs to the important operation letter of device
Breath needs to increase CRC check to prevent by other data covers or distorting, and carries out regular visit.If it find that non-artificial
CRC change needs to stop A/D chip work, provides high severity alarm.AD sampling A/D chip belongs to core work component, needs to supervise in real time
The information such as A/D chip conversion time, error flag are controlled, if it find that mistake, should reset at once and reinitialize A/D chip benefit
It rescues, if mistake still remains, needs to provide high severity alarm.Breaking for thermal resistance, the progress of alarm needs repeatedly sentence by synthesis
It is disconnected, in order to avoid occurring accidentally alerting, while having the function of that broken string returns, is connected again after broken string and need to provide broken string after line and return
Prompt is returned, parameter band thermal resistance channel number is prompted.
4. applying logical process: the settable signal Threshold Crossing Alert in each channel or trip avoidance function may be alternatively provided as only showing
Function.If being set as signal Threshold Crossing Alert or trip avoidance function, logic judgment processing is carried out in real-time task, is more than limit value
After make alarm or tripping outlet.
In the description of the present invention, it should be understood that term " coaxial ", " bottom ", " one end ", " top ", " in
The orientation of the instructions such as portion ", " other end ", "upper", " side ", " top ", "inner", " front ", " center ", " both ends " or position are closed
System is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of describing the present invention and simplifying the description, rather than
The device or element of indication or suggestion meaning must have a particular orientation, be constructed and operated in a specific orientation, therefore cannot
It is construed as a limitation of the present invention.
In addition, term " first ", " second ", " third ", " the 4th " are used for description purposes only, and should not be understood as instruction or
It implies relative importance or implicitly indicates the quantity of indicated technical characteristic, define " first ", " second ", " the as a result,
Three ", the feature of " the 4th " can explicitly or implicitly include at least one of the features.
In the present invention unless specifically defined or limited otherwise, term " installation ", " setting ", " connection ", " Gu
Calmly ", the terms such as " being screwed on " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；
It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, can also indirectly connected through an intermediary, it can be with
It is the interaction relationship of the connection or two elements inside two elements, unless otherwise restricted clearly, for this field
For those of ordinary skill, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (7)
1. a kind of case that can automatically switch direct-flow input signal type becomes measure and control device, including cabinet (1), which is characterized in that institute
It states cabinet (1) positive side to be hinged with case lid (2), the positive middle part of the case lid (2) is equipped with display screen (3), the case lid
(2) positive side is equipped with connection lock (4), and the two sides of the cabinet (1) are equipped with radiator window (5), and the two of cabinet (1) inside
Side is equipped with three groups of engaging slots, and by the engaging slot, successively engaging has the first mounting plate (6), the to the cabinet (1) from top to bottom
The side of two mounting plates (7) and third mounting plate (8), the first mounting plate (6) top is fixedly installed with signal collector
(9), the other side on the first mounting plate (6) top is fixedly installed with wireless signal transceiver (10), second mounting plate
(7) side on top is fixedly installed with signal shifter (11), and the other side on the second mounting plate (7) top is fixedly installed with
The side of signal conditioner (12), third mounting plate (8) top is fixedly installed with data collector (13), and the data are adopted
The inside of storage (13) is equipped with A/D chip and FLASH chip, during the other side on third mounting plate (8) top is fixedly installed with
Central processor (14), the internal bottom end of the cabinet (1) are fixedly installed with battery (15), the signal collector (9) and institute
Signal shifter (11) electric connection is stated, the signal shifter (11) and the data collector (13) are electrically connected, described
Display screen (3), the wireless signal transceiver (10) and the data collector (13) are electric with the central processing unit (14)
Property connection.
2. a kind of case that can automatically switch direct-flow input signal type according to claim 1 becomes measure and control device, feature
Be: the top of first mounting plate (6), second mounting plate (7) and the third mounting plate (8) is equidistantly equipped with several
It slots (17), the both ends of the fluting (17) are fixedly connected with fixed block (18) by screw.
3. a kind of case that can automatically switch direct-flow input signal type according to claim 1 becomes measure and control device, feature
It is: the display screen (3), the signal collector (9), the wireless signal transceiver (10), the signal shifter
(11), the signal conditioner (12), the data collector (13) and the central processing unit (14) pass through outside connected switch
It is electrically connected with the battery (15).
4. a kind of case that can automatically switch direct-flow input signal type according to claim 1 becomes measure and control device, feature
Be: the side of cabinet (1) bottom is equipped with charging interface, and the charging interface and the battery (15) are electrically connected.
5. a kind of case that can automatically switch direct-flow input signal type according to claim 1 becomes measure and control device, feature
Be: the top of the wireless signal transceiver (10) is equipped with signal transmitting and receiving antenna (16), and the signal transmitting and receiving antenna (16) is worn
It is inserted through the top of cabinet (1).
6. a kind of case that can automatically switch direct-flow input signal type according to claim 1 becomes measure and control device, feature
Be: the back side of the cabinet (1) is equipped with Wiring port, and the Wiring port is connect with the signal collector (9) telecommunications.
7. a kind of case that can automatically switch direct-flow input signal type according to claim 1 becomes measure and control device, feature
It is: the model 702M12-WIP67 of the wireless signal transceiver (10), the model of the signal shifter (11)
HDMI-301, the model XA90-BZ2704, the model HT- of the data collector (13) of the signal conditioner (12)
3600, the model LGA1156 of the central processing unit (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820861477.2U CN208506544U (en) | 2018-06-05 | 2018-06-05 | A kind of case change measure and control device that can automatically switch direct-flow input signal type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820861477.2U CN208506544U (en) | 2018-06-05 | 2018-06-05 | A kind of case change measure and control device that can automatically switch direct-flow input signal type |
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| Publication Number | Publication Date |
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| CN208506544U true CN208506544U (en) | 2019-02-15 |
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| CN201820861477.2U Active CN208506544U (en) | 2018-06-05 | 2018-06-05 | A kind of case change measure and control device that can automatically switch direct-flow input signal type |
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| CN (1) | CN208506544U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108594721A (en) * | 2018-06-05 | 2018-09-28 | 北京博阳慧源电力科技有限公司 | A kind of case change measure and control device that can automatically switch direct-flow input signal type |
| CN112039205A (en) * | 2020-08-28 | 2020-12-04 | 国网河南省电力公司技能培训中心 | Remote local switch with remote authorization control function and mode control method |
-
2018
- 2018-06-05 CN CN201820861477.2U patent/CN208506544U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108594721A (en) * | 2018-06-05 | 2018-09-28 | 北京博阳慧源电力科技有限公司 | A kind of case change measure and control device that can automatically switch direct-flow input signal type |
| CN108594721B (en) * | 2018-06-05 | 2023-12-19 | 北京博阳慧源电力科技有限公司 | Box transformer substation measurement and control device capable of automatically switching direct current input signal types |
| CN112039205A (en) * | 2020-08-28 | 2020-12-04 | 国网河南省电力公司技能培训中心 | Remote local switch with remote authorization control function and mode control method |
| CN112039205B (en) * | 2020-08-28 | 2024-02-27 | 国网河南省电力公司技能培训中心 | Remote on-site switch with remote authorization control function and mode control method |
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