CN209233556U - A kind of equipment expands circuit and thermal imaging system device - Google Patents
A kind of equipment expands circuit and thermal imaging system device Download PDFInfo
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- CN209233556U CN209233556U CN201822239559.6U CN201822239559U CN209233556U CN 209233556 U CN209233556 U CN 209233556U CN 201822239559 U CN201822239559 U CN 201822239559U CN 209233556 U CN209233556 U CN 209233556U
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Abstract
A kind of equipment expands circuit and thermal imaging system device, it is connect at least two external equipments, including control module, power module, at least two interfaces, first switch module and second switch module, by the way that power module is added, control module and first switch module, by the supply access of control module and first switch module control power module and each external equipment, it realizes when the first external equipment is connect with the second external equipment, first external equipment will not power to slave, and equipment expands circuit and can also power to the first external equipment, to increase the cruise duration of the first external equipment, it solves the problems, such as to cause the first external equipment power consumption big and persistent fever there are that can power to the second external equipment automatically when the first external equipment is connect with the second external equipment in traditional technical solution.
Description
Technical field
The utility model belongs to control technology field more particularly to a kind of equipment expands circuit and thermal imaging system device.
Background technique
Currently, the smart machine with OTG function is in external equipment, smart machine will give always equipment connected to it
Power supply is until smart machine electricity exhausts or extract connector, and in order to solve this problem, traditional technical solution is usually to adopt
It controls whether smart machine enters OTG mode with mechanical switch or by level switching, enters OTG mode in smart machine
Afterwards, output electric energy is directed out by smart machine, powered to the equipment of connection, but the equipment due to connecting with smart machine needs
To be powered by smart machine just can be carried out work, so the equipment connecting with smart machine can consume intelligence during use
Equipment a big chunk electricity, shorten smart machine itself uses the time, moreover, the power consumption increase of smart machine can increase
Add the fever of smart machine.
Therefore, it can be supplied automatically to equipment connected to it in traditional technical solution there are when smart machine external equipment
Electricity and the problem of cause smart machine power consumption big and persistent fever.
Utility model content
In view of this, the utility model embodiment provides a kind of equipment expansion circuit, it is intended to solve traditional technical side
Smart machine present in case can power automatically to external equipment when connecting with external equipment and cause smart machine power consumption big
And the problem of persistent fever.
The first aspect of the utility model embodiment provides a kind of equipment expansion circuit, connects at least two external equipments
It connects, comprising:
Control module；
Power module, the power module are connect with the control module；
At least two interfaces, each interface are connect with the control module and the power module, each described to connect
It is mutually indepedent between each interface mouthful to connect each external equipment；
First switch module, the control terminal of the first switch module connect with the control module, the first switch
The input terminal of module is connect with the power module, and the output end of the first switch module is connect with the external equipment, institute
State first switch module be configured as being controlled according to the control signal of the control module power module with it is described external
The on-off of the supply access of equipment；
Second switch module, the second switch module and the control module, the power module, described at least two
Interface, the second switch module is to the communication between controlling the external equipment according to control module.
In one embodiment, the first switch module includes multiple switch unit, each switch unit difference
It connect with the control module, the power module and the interface, is independent of each other between each switch unit.
In one embodiment, each switch unit includes first switch tube, second switch, first resistor,
Two resistance and 3rd resistor, the first end of the first resistor are connect with the control module, and the second of the first resistor
The first end of end and the second resistance is connected to the control terminal of the first switch tube, the second end of the second resistance and institute altogether
The output end for stating first switch tube is connected to ground altogether, and the input terminal of the first switch tube and the control terminal of the second switch are total
It is connected to the second end of the second resistance, the first end of the second resistance and the input terminal of the second switch are connected to institute altogether
Power module is stated, the output end of the second switch is connect with interface described in one of them.
In one embodiment, the second switch module includes USB switch chip, the 4th resistance and first capacitor,
The power end of the USB switch chip is connect with the power module, and the first end of the USB switch chip connects with described first
Mouth connection, the switch terminal of the USB switch chip are connect with the control module, the second end of the USB switch chip and institute
Second interface connection is stated, the third end of the USB switch chip is connect with the third interface.
It in one embodiment, further include third switch module, the third switch module and the first interface and institute
Control module connection is stated, the third switch module is configured as external according to the control signal of control module control described first
Equipment works in OTG mode or non-OTG mode.
In one embodiment, the third switch module includes digital gate circuit chip.
In one embodiment, the power module includes multiple DC-DC units, and each DC-DC unit is configured
For operating voltage needed for the voltage of the power module is switched to each module.
In one embodiment, the power module further includes charge/discharge unit, the charge/discharge unit be configured as to
The power module charge and discharge.
The second aspect of the utility model embodiment provides a kind of thermal imaging system device, connect with smart machine, including upper
The equipment stated expands circuit and the infrared module for obtaining infrared image, and the smart machine is first external equipment,
The infrared module is that second external equipment is connect with the first switch module and the second switch module.
In one embodiment, the thermal imaging system device further include:
At least one of communication module, range finder module and light source module, the communication module by the interface with
The equipment expands circuit connection, the range finder module or light source module and expands electricity by the control module and the equipment
Road connection.
Above-mentioned equipment expands circuit, connect at least two external equipments, by addition power module, control module and
And first switch module, it is real by the supply access of control module and first switch module control power module and external equipment
When present first external equipment is connect with the second external equipment, the first external equipment will not power to slave, and equipment is expanded
Circuit can also power to the first external equipment, to increase the cruise duration of the first external equipment, solve traditional skill
The first external equipment power consumption is caused there are that can power automatically to slave when the first external equipment is connect with slave in art scheme
The problem of big and persistent fever.
Detailed description of the invention
It, below will be to embodiment or the prior art in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
Attached drawing needed in description is briefly described, it should be apparent that, the accompanying drawings in the following description is only that this is practical new
Some embodiments of type for those of ordinary skill in the art without any creative labor, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the circuit diagram that the equipment that an embodiment of the present invention provides expands circuit；
Fig. 2 is the circuit diagram that equipment shown in FIG. 1 expands first switch module in circuit；
Fig. 3 is the circuit diagram that equipment shown in Fig. 2 expands switch unit in circuit；
Fig. 4 is the circuit diagram that equipment shown in FIG. 1 expands second switch module in circuit；
Fig. 5 is the circuit diagram that the equipment that another embodiment of the utility model provides expands circuit；
Fig. 6 is the circuit diagram that equipment shown in FIG. 1 expands power module in circuit；
Fig. 7 is the circuit diagram that equipment shown in fig. 6 expands the first DC-DC unit in circuit；
Fig. 8 is the circuit diagram for the thermal imaging system that an embodiment of the present invention provides.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to explain
The utility model is not used to limit the utility model.
Referring to Fig. 1, a kind of equipment that the utility model first embodiment provides expands the circuit diagram of circuit, in order to
Convenient for explanation, only the parts related to this embodiment are shown, and details are as follows:
In one embodiment, equipment expands circuit, connect at least two external equipments, it should be appreciated that external equipment is
One relative concept, not to limit equipment itself.
In one embodiment, equipment expand circuit include control module 100, power module 200, at least two interfaces,
First switch module 500 and second switch module 600, in the present embodiment, interface include first interface 301, second connect
Mouth 302 and third interface 303, in other embodiments, interface quantity optionally can also select two or 4 or more
Interface, control module 100 are configured as the on-off to control first switch module 500 and second switch module 600 and then control
Power supply and control first external equipment and second external equipment or third external equipment of the power module 200 processed with external equipment
Between communication, control module 100 can be made of microprocessor or micro process control chip, such as STM32F103RC16；Electricity
Source module 200 is configured as the power demand to meet external equipment, and power module 200 can be by battery or external power supply
Or powered jointly by both battery and external power supply, it should be appreciated that external power supply can pass through interface (such as second interface 302)
For the power supply of principal and subordinate's control circuit, it should be appreciated that when equipment, which expands circuit, is powered by external power supply, equipment expands circuit can be to the
One external equipment, such as smart machine, are powered；The interfaces quilts such as first interface 301, second interface 302, third interface 303
It is configured to connection external equipment, the interfaces such as first interface 301, second interface 302, third interface 303 can be connect by Micro USB
Mouth or type C interface are constituted；First switch module 500 is configured as controlling electricity according to the control signal of control module 100
The on-off of the supply access of interfaces such as source module 200 and first interface 301, second interface 302 and third interface 303, first opens
Closing module 500 can be by having the device or chip that can receive control signal and open or close according to control signal
It constitutes, such as switching tube, switch chip or switching tube and the combination of switch chip etc.；Second switch module 600 is to basis
Control module 100 controls the communication between the first external equipment and the second external equipment or third external equipment, second switch
Module 600 can be constituted by having the device of multi-path choice or chip, such as USB switch chip (such as TS3USB30EDGSR)
Or high-speed, multi-path selection switch chip etc..
Power module 200 is connect with control module 100, and first interface 301, second interface 302 and third interface 303 divide
It not being connect with control module 100 and power module 200, equipment expands circuit and connects the first external equipment by first interface 301,
Equipment expands circuit and connects the second external equipment by second interface 302, and equipment expands circuit and passes through the connection of third interface 303 the
Three external equipments, the control terminal of first switch module 500 connect with control module 100, the input terminal of first switch module 500 with
Power module 200 connects, and output end and the first interface 301 or second interface 302 or third of first switch module 500 connect
The equal interfaces connection of mouth 303, second switch module 600 and control module 100, power module 200, first interface 301, second interface
302 and third interface 303 connect.
Above-mentioned equipment expands circuit, connect at least two external equipments, by addition power module, control module,
First switch module and second switch module, by control module and first switch module control power module with from external equipment
Supply access, realize when the first external equipment is connect with the second external equipment, the first external equipment will not be given second external
Equipment power supply, and equipment expands circuit and can also power to the first external equipment, to increase the continuous of the first external equipment
ETS estimated time of sailing, solving can be automatically to slave when connecting there are the first external equipment with the second external equipment in traditional technical solution
The problem of powering and causing the first external equipment power consumption big and persistent fever.
Referring to Fig. 2, in one embodiment, first switch module 500 includes at least one switch unit, in this implementation
In example, first switch module 500 includes first switch unit 501, second switch unit 502, third switch unit 503 and the
Four switch units 304, in other embodiments, first switch module 500 also may include one or more switch unit, respectively
A switch unit respectively with control module 100, power module 200 and first interface 301 or second interface 302 or third
The equal interfaces of interface 303 connect, and are independent of each other between each switch unit, and each switch unit can receive control letter by having
Number and according to control signal come the device opening or closes perhaps chip composition such as switching tube, switch chip or switch
The combination etc. of pipe and switch chip, it should be appreciated that the quantity of switch unit is equal to first interface 301, second interface 302 and third
The summation of the quantity of the interfaces such as interface 303.
Referring to Fig. 3, in one embodiment, below by taking first switch unit 501 as an example, illustrating the group of each switch unit
At first switch unit 501 includes first switch tube Q1, second switch Q2, first resistor R1, second resistance R2 and third
Resistance R3, it should be appreciated that switching tube can be triode, metal-oxide-semiconductor or IGBT pipe etc., be also possible to the integrated chip of switching tube,
The first end of first resistor R1 is connect with control module 100, and the second end of first resistor R1 and the first end of second resistance R2 are total
It is connected to the control terminal of first switch tube Q1, the second end of second resistance R2 and the output end of first switch tube Q1 are connected to ground altogether, the
The input terminal of one switching tube Q1 and the control terminal of second switch Q2 are connected to the second end of second resistance R2 altogether, second resistance R2's
The input terminal of first end and second switch Q2 are connected to power module 200, the output end and first interface of second switch Q2 altogether
301, the interfaces such as second interface 302 and third interface 303 connect, in order to keep the stability of switch unit output voltage, also
A shunt capacitance C1 can be added in its input terminal, the first end of shunt capacitance C1 and the output end of second switch connect,
The second end of shunt capacitance C1 is grounded.
Referring to Fig. 4, in one embodiment, second switch module 600 include USB switch chip U2, resistance R17 and
The power end of capacitor C4, USB switch chip U2 is connect with power module 200, the first end D+ and D- of USB switch chip U2 and
The connection of one interface 301, the switch terminal of USB switch chip connect with control module 100, the second end D1+ of USB switch chip with
D1- is connect with the first second interface 302, and the third end D2+ and D2- of USB switch chip are connect with third interface 303.
In order to make it easy to understand, the setting of the first external equipment, the second external equipment and third external equipment is as follows, with solution
A kind of working condition of second switch module 600 is released, the first external equipment is mobile phone, the second external equipment is infrared module,
Three external equipments are computer, and the first end D+ and D- of USB switch chip U2 is connect by first interface 301 with mobile phone, and USB is opened
The switch terminal for closing chip connect with control module 100, the second end D1+ and D1- of USB switch chip pass through second interface 302 and
Infrared module connection, the third end D2+ and D2- of USB switch chip are connect by third interface 303 with computer, when USB is switched
When the first end D+ and D- of chip U2 is connect with second end D1+ and D1-, infrared module is communicated with mobile phone at this time, infrared mould
The collected information of block is transferred to mobile phone by second switch module 600, and mobile phone can also be by second switch module 600 to red
The data setting of outer mold piece is adjusted, when the first end D+ and D- of USB switch chip U2 is connect with third end D2+ and D2-,
It is mutually passed at this point, mobile phone carries out data with computer.
Referring to Fig. 5, further including third switch module 700, third switch module 700 and first in one embodiment
Interface 700 and control module 100 connect, and third switch module 700 is configured as being controlled according to the control signal of control module 100
First external equipment works in OTG mode or non-OTG mode, and third switch module 700 can have digital gate circuit chip structure
At, such as CD74HC4051PW chip, CD74HC4053PW chip etc..
Referring to Fig. 6, in one embodiment, power module 200 includes multiple DC-DC units, each DC-DC unit quilt
It is configured to operating voltage needed for the voltage of power module 200 is switched to each module, DC-DC unit can be by DC-DC chip structure
At, such as chip TPS63070.
It should be understood that the voltage of each DC-DC unit output should be corresponding with the operating voltage of each external equipment, such as certain
The operating voltage of one external equipment is 3.3V, then is 3.3V by the voltage input of battery or external power supply using DC-DC unit
It is used for external equipment.
Refering to Fig. 7, by taking wherein the first DC-DC unit 201 as an example, illustrate the working principle of the first DC-DC unit 201, the
One DC-DC unit 201 includes that the voltage input end VIN of DC-DC chip U1, DC-DC chip U1 and battery or external power supply connect
It connects, the end the VSEL ground connection of DC-DC chip U1, the enable end EN and PS/SYNC of DC-DC chip U1 connects altogether, and is connect by resistance R2
It is grounded in the end VAUX of battery or external power supply, DC-DC chip U1 through capacitor C3, the voltage output end of DC-DC chip U1
VOUT is connect with second interface 302, and the first feedback end FB of DC-DC chip U1 is connected to the voltage of DC-DC chip U1 through resistance R4
The second feedback end FB2 of output end VOUT, DC-DC chip U1 is grounded, and the end PG of DC-DC chip U1 is grounded through resistance R3, Ying Li
Solution, in order to stablize DC-DC cell operation, can between input terminal and output end plus shunt capacitance, as in Fig. 7 capacitor C3,
C5, C11, C18 and C20.
Referring to Fig. 8, in one embodiment, power module 200 further includes charge/discharge unit, charge/discharge unit is configured
To give power module 200 charge and discharge, specifically, can be understood as to battery charging and discharging.
Charge/discharge unit can be made of charge and discharge electrical chip, such as chip BO25601.
The second embodiment of the utility model provides a kind of thermal imaging system device, connect with smart machine, including above-mentioned
Equipment expands circuit and the infrared module for obtaining infrared image, and infrared module is as the second external equipment and first switch mould
Block 500 and second switch module 600 connect, and smart machine is the first external equipment.
Referring to Fig. 8, in one embodiment, thermal imaging system device further include: communication module, range finder module and light source die
At least one of block, communication module expand circuit connection as external equipment and equipment, and communication module can be by bluetooth mould group
It constitutes, range finder module and light source module can not expand circuit by interface and equipment, but the control of circuit is expanded with equipment
Module is connected directly.
The only preferred embodiment for the utility model above, is not intended to limit the utility model, all at this
Made any modifications, equivalent replacements, and improvements etc., should be included in the utility model within the spirit and principle of utility model
Protection scope within.
Claims (10)
1. a kind of equipment expands circuit, it is connect at least two external equipments characterized by comprising
Control module；
Power module, the power module are connect with the control module；
At least two interfaces, each interface are connect with the control module and the power module, and each interface is used
It is mutually indepedent between each interface to connect each external equipment；
First switch module, the control terminal of the first switch module connect with the control module, the first switch module
Input terminal connect with the power module, the output end of the first switch module is connect with the external equipment, described
One switch module is configured as controlling the power module and the external equipment according to the control signal of the control module
Supply access on-off；
Second switch module, the second switch module connect with described in the control module, the power module, at least two
Mouthful, the second switch module is to the communication between controlling the external equipment according to control module.
2. equipment as described in claim 1 expands circuit, which is characterized in that the first switch module includes multiple switch list
Member, each switch unit are connect with the control module, the power module and the interface respectively, described each to open
It is independent of each other between the unit of pass.
3. equipment as claimed in claim 2 expands circuit, which is characterized in that each switch unit includes first switch
Pipe, second switch, first resistor, second resistance and 3rd resistor, the first end of the first resistor and the control mould
The first end of block connection, the second end of the first resistor and the second resistance is connected to the control of the first switch tube altogether
The output end of end, the second end of the second resistance and the first switch tube is connected to ground, the input of the first switch tube altogether
The control terminal of end and the second switch is connected to the second end of the second resistance, the first end of the second resistance and institute altogether
The input terminal for stating second switch is connected to the power module altogether, and the output end of the second switch connects with described in one of them
Mouth connection.
4. equipment as described in claim 1 expands circuit, which is characterized in that the second switch module includes USB switch core
The power end of piece, the 4th resistance and first capacitor, the USB switch chip is connect with the power module, the USB switch
The first end of chip is connect with the first interface, and the switch terminal of the USB switch chip is connect with the control module, described
The second end of USB switch chip is connect with the second interface, and the third end of the USB switch chip and the third interface connect
It connects.
5. the equipment as described in claim 1-4 any one expands circuit, which is characterized in that it further include third switch module,
The third switch module is connect with the first interface and the control module, and the third switch module is configured as basis
The control signal of control module controls first external equipment and works in OTG mode or non-OTG mode.
6. equipment as claimed in claim 5 expands circuit, which is characterized in that the third switch module includes digital gate circuit
Chip.
7. the equipment as described in claim 1-4 any one expands circuit, which is characterized in that the power module includes multiple
DC-DC unit, each DC-DC unit are configured as the electricity of work needed for the voltage of the power module is switched to each module
Pressure.
8. the equipment as described in claim 1-4 any one expands circuit, which is characterized in that the power module further includes filling
Discharge cell, the charge/discharge unit are configured as to the power module charge and discharge.
9. a kind of thermal imaging system device, connect with smart machine, which is characterized in that including described in claim 1-8 any one
Equipment expands circuit and the infrared module for obtaining infrared image, and the smart machine is first external equipment, described
Infrared module is that second external equipment is connect with the first switch module and the second switch module.
10. thermal imaging system device as claimed in claim 9, which is characterized in that further include:
At least one of communication module, range finder module and light source module, the communication module by the interface with it is described
Equipment expands circuit connection, the range finder module or light source module and expands circuit company by the control module and the equipment
It connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822239559.6U CN209233556U (en) | 2018-12-28 | 2018-12-28 | A kind of equipment expands circuit and thermal imaging system device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822239559.6U CN209233556U (en) | 2018-12-28 | 2018-12-28 | A kind of equipment expands circuit and thermal imaging system device |
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| Publication Number | Publication Date |
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| CN209233556U true CN209233556U (en) | 2019-08-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201822239559.6U Active CN209233556U (en) | 2018-12-28 | 2018-12-28 | A kind of equipment expands circuit and thermal imaging system device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112181873A (en) * | 2020-09-25 | 2021-01-05 | 紫光恒越技术有限公司 | Method and device for controlling working state of on-chip interface |
-
2018
- 2018-12-28 CN CN201822239559.6U patent/CN209233556U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112181873A (en) * | 2020-09-25 | 2021-01-05 | 紫光恒越技术有限公司 | Method and device for controlling working state of on-chip interface |
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