A kind of intelligent display terminal
Technical field
It the utility model is related to display terminal, and in particular to a kind of prison intelligent display terminal.
Background technology
Prison is the important place of government supervision management inmate transformation, due to the particularity in prison, inmate's
Activity needs many restrictions, but is also required to ensure the basic living demand of inmate.At present, shopping at network is because it is convenient just
The characteristics of prompt, is more and more common, and place provides the facility of shopping at network to inmate at the prison, can improve the people that serves a sentence
The quality of life of member, facilitates prison administration.
The content of the invention
To solve the above problems, the utility model provides a kind of intelligent display terminal for prison, with to inmate
Shopping service is provided.
The technical solution of the utility model is:A kind of intelligent display terminal, including terminal body and hand-held mobile terminal;
The terminal body includes the first housing, is provided with the first display screen and outlet of printer on the first housing, and first
First circuit board and printer are provided with housing;The first single-chip microcomputer, the first display screen driving electricity are provided with first circuit board
Road, the first printer driver circuit, first network module, the first bluetooth module and the first power module;First display screen
By the first display drive circuit and the first monolithic mechatronics, the printer passes through the first printer driver circuit and
One monolithic mechatronics;The first network module, the first bluetooth module respectively with the first monolithic mechatronics;First electricity
Source module respectively with the first single-chip microcomputer, the first display screen and printing mechatronics;
The fixed support for placing hand-held mobile terminal is additionally provided with first housing;
The hand-held mobile terminal includes the second housing, is provided with second display screen on the second housing, is set in second shell body
Put second circuit board, set on second circuit board second singlechip, second display screen drive circuit, the second Receiver Module,
Second bluetooth module and second source module;The second display screen passes through second display screen drive circuit and second singlechip electricity
Connection;Second Receiver Module, the second bluetooth module electrically connect with second singlechip respectively, the second source module
Electrically connected respectively with second singlechip, second display screen;
First bluetooth module and the second bluetooth module radio communication.
Further, the printer is the thermal printer with printhead.
Further, printhead protection circuit is additionally provided with first circuit board, the printhead protection circuit includes:
LM393 comparators, resistance R1-R6, electric capacity C1-C4, diode D1, triode V1, metal-oxide-semiconductor M1;
2 pin of LM393 comparators are accessed after printhead detection voltage parallel resistance R1, resistance R2 and R3 are connected on power supply electricity
Both ends are pressed, 1 pin of LM393 comparators is connected between resistance R2 and R3, and electric capacity C1 is in parallel with resistance R3, and the 3 of LM393 comparators
Pin is connected to supply voltage by resistance R4, and 3 pin of LM393 comparators are also connected to by the resistance R5 and diode D1 of parallel connection
Triode V1 base stage, and 3 pin of diode D1 negative pole connection LM393 comparators;Triode V1 grounded emitter, three poles
Pipe V1 colelctor electrode connection metal-oxide-semiconductor M1 4 pin;Paralleling MOS pipe M1 1 pin after metal-oxide-semiconductor M1 4 pin also series resistance R6,2 pin and
3 pin, it is grounded afterwards by electric capacity C2, C3 of parallel connection;Output voltage and pass through after metal-oxide-semiconductor M1 5 pin, 6 pin, 7 pin, 8 pin parallel connections
Electric capacity C4 is grounded.
Further, metal-oxide-semiconductor M1 is FDS9431A type metal-oxide-semiconductors.
Further, the first single-chip microcomputer is STM32F103 single-chip microcomputers.
Further, second singlechip is STM32F103 single-chip microcomputers.
Further, the first bluetooth module and the second bluetooth module are HM06 bluetooth modules.
Further, the first housing rear end sets network interface, and the network interface electrically connects with first network module.
Further, second display screen is touch display screen.
Intelligent display terminal provided by the utility model, terminal body and hand-held mobile terminal two parts, terminal sheet are set
It can be used for the shopping information of display inmate on body, such as whether have shopping Unclaimed etc., can be with display of commodity information etc., side
Just inmate does shopping.When showing relevant information on terminal body, hand-held mobile terminal login account can be used in inmate,
Make hand-held mobile terminal with terminal body by bluetooth wireless connection, inmate operates hand-held mobile terminal and passes through terminal body
Printer relevant information is printed, be easy to get commodity.The present apparatus is simple in construction, and cost is low, facilitates prison to use, and has
Beneficial to the quality of life for improving inmate, beneficial to prison administration.
Brief description of the drawings
Fig. 1 is the utility model specific embodiment structural representation.
Fig. 2 is the utility model specific embodiment circuit theory schematic diagram.
Fig. 3 is the utility model specific embodiment printhead protection circuit schematic diagram.
In figure, 1 terminal body, 2 first housings, 3 first display screens, 4 outlet of printer, 5 hand-held mobile terminals, 6 second
Housing, 7 second display screens, 8 fixed supports, 9 first display drive circuits, 10 first single-chip microcomputers, 11 first power modules, 12
First printer driver circuit, 13 printers, 14 first network modules, 15 first bluetooth modules, 16 second bluetooth modules, 17
Two display drive circuits, 18 second singlechips, 19 second Receiver Modules, 20 second source modules.
Embodiment
Below in conjunction with the accompanying drawings and the utility model is elaborated by specific embodiment, and following examples are to this
The explanation of utility model, and the utility model is not limited to implementation below.
As illustrated in fig. 1 and 2, intelligent display terminal provided by the utility model, including terminal body 1 and hand-held mobile terminal
5。
Terminal body 1 includes the first housing 2, is provided with the first display screen 3 and outlet of printer 4 on the first housing 2, and first
First circuit board and printer 13 are provided with housing 2;The first single-chip microcomputer 10 is provided with first circuit board, the first display screen drives
Dynamic circuit 9, the first printer driver circuit 12, first network module 14, the first bluetooth module 15 and the first power module 11.The
One display screen 3 is electrically connected by the first display drive circuit 9 with the first single-chip microcomputer 10, and printer 13 is driven by the first printer
Dynamic circuit 12 electrically connects with the first single-chip microcomputer 10, first network module 14, the first bluetooth module 15 respectively with the first single-chip microcomputer 10
Electrical connection, the first power module 11 electrically connect with the first single-chip microcomputer 10, the first display screen 3 and printer 13 respectively.First housing 2
Rear end also sets up network interface, and network interface electrically connects with first network module 14, the open network module access network of terminal body 1
Network, and remote control is realized by host computer.
The fixed support 8 for placing hand-held mobile terminal 5 is additionally provided with first housing 2.
Hand-held mobile terminal 5 includes the second housing 6, is provided with second display screen 7 on the second housing 6, is set in the second housing 6
Second circuit board is put, second singlechip 18, second display screen drive circuit 17, the second radio frequency receiving are set on second circuit board
Block 19, the second bluetooth module 16 and second source module 20.Second display screen 7 passes through second display screen drive circuit 17 and second
Single-chip microcomputer 18 electrically connects;Second Receiver Module 19, the second bluetooth module 16 electrically connect with second singlechip 18 respectively, and second
Power module 20 electrically connects with second singlechip 18, second display screen 7 respectively.The weared on wrist storage of general prison prisoner
Have the radio frequency wrist strap of personal information, when inmate uses hand-held mobile terminal 5, can by wrist strap close to hand-held mobile terminal 5, by
The reception signal of the second Receiver Module 19 of hand-held mobile terminal 5, so as to log in inmate's account.Second display screen 7 is
Touch display screen, convenient operation.
First bluetooth module 15 and the radio communication of the second bluetooth module 16, realize terminal body 1 and hand-held mobile terminal 5
It is in communication with each other, HM06 bluetooth modules can be selected in the first bluetooth module 15 and the second bluetooth module 16, low in energy consumption, and extension uses the longevity
Life.
In the present embodiment, printer 13 is the thermal printer 13 with printhead, because printhead is easily because of temperature high fever
It is bad, therefore printhead protection circuit is set.
As shown in figure 3, printhead protection circuit includes:LM393 comparators, resistance R1-R6, electric capacity C1-C4, diode
D1, triode V1, metal-oxide-semiconductor M1.
2 pin of LM393 comparators are accessed after printhead detection voltage parallel resistance R1, resistance R2 and R3 are connected on power supply electricity
Both ends are pressed, 1 pin of LM393 comparators is connected between resistance R2 and R3, and electric capacity C1 is in parallel with resistance R3, and the 3 of LM393 comparators
Pin is connected to supply voltage by resistance R4, and 3 pin of LM393 comparators are also connected to by the resistance R5 and diode D1 of parallel connection
Triode V1 base stage, and 3 pin of diode D1 negative pole connection LM393 comparators;Triode V1 grounded emitter, three poles
Pipe V1 colelctor electrode connection metal-oxide-semiconductor M1 4 pin;Paralleling MOS pipe M1 1 pin after metal-oxide-semiconductor M1 4 pin also series resistance R6,2 pin and
3 pin, it is grounded afterwards by electric capacity C2, C3 of parallel connection;Output voltage and pass through after metal-oxide-semiconductor M1 5 pin, 6 pin, 7 pin, 8 pin parallel connections
Electric capacity C4 is grounded.
Metal-oxide-semiconductor M1 is FDS9431A type metal-oxide-semiconductors.
When printhead temperature raises, printhead detection voltage rise, when printhead detection voltage is increased to certain value,
It is higher than 1 pin power supply of LM393 comparators, then 3 pin of LM393 comparators export a low level, so as to triode V1 base
Pole tension is pulled low, and the conducting voltage less than triode V1, triode V1 cut-offs, is connected to metal-oxide-semiconductor M1 4 pin, now MOS
Pipe M1 VGSVoltage is less than threshold power, and metal-oxide-semiconductor M1 is not turned on, and exports 8 pin Non voltage outputs, and the motor of printer 13 is motionless
Make, so as to realize that temperature overheating is protected,
In the present embodiment, STM32F103 single-chip microcomputers can be selected in the first single-chip microcomputer 10 and second singlechip 18, and cost is low,
Stability is high.
Described above is only preferred embodiment of the present utility model, it should be pointed out that:For the common skill of the art
For art personnel, on the premise of the utility model principle is not departed from, some improvements and modifications can also be made, these improve and
Retouching also should be regarded as the scope of protection of the utility model.