CN101540842A - Mother and subsidiary cameras - Google Patents
Mother and subsidiary cameras Download PDFInfo
- Publication number
- CN101540842A CN101540842A CN200910106546A CN200910106546A CN101540842A CN 101540842 A CN101540842 A CN 101540842A CN 200910106546 A CN200910106546 A CN 200910106546A CN 200910106546 A CN200910106546 A CN 200910106546A CN 101540842 A CN101540842 A CN 101540842A
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- camera
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- mother
- subsidiary
- communication interface
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Abstract
The invention relates to a camera, which pertains to the technical field of camera equipment and is mainly used for multi-camera monitoring in a bus connection mode. The camera improves the circuit and connection mode of a digital camera, thus leading the average cost to be reduced under the condition that the camera has the same functions. A mother head control circuit in the mother camera can be used for processing and exchanging the information of an upper communication interface and the information of a lower communication interface. A power supply switch in the mother camera can control the power supplying state of the subsidiary camera. The mother camera can send a photographing command to the subsidiary camera, stores the picture data in the camera in the self-owned memory, and then uploads the picture data to a host computer according to requirement; and the mother camera can also check and judge the operating state of the subsidiary camera and lead the subsidiary camera to be turned off and then be electrified again for restart.
Description
Technical field
The present invention relates to a kind of camera, belong to the picture pick-up device technical field.
Background technology
Digital camera head and connect between the host computer of this camera and need to carry out communication so that host computer sends various operational orders to camera, fetch take the data of photo.When a host computer will connect a plurality of camera, the communication of using bus mode connected the interface resource that can save host computer.
Though existing 485 serial communication interface cameras can the bus ways of connecting be worked, and link to each other with the host computer of 232 serial communication interfaces, need 232-485 transducer of serial connection in addition.Because 232 interfaces are not bus structures, can only connect an equipment, earlier 232 interface conversion to be become 485 interfaces of bus mode, host computer could connect a plurality of 485 interface cameras.And each 485 such interface camera all will dispose resources such as identical Monitoring and Controlling circuit, memory circuitry, makes that the cost of each camera is all equally high.
Summary of the invention
Purpose of the present invention is exactly for circuit that improves digital camera head and connected mode, make a plurality of cameras that are connected to non-bus interface host computer with bus mode have said function, and average unit cost is minimized.
The present invention realizes the technical scheme of above-mentioned purpose:
Mother and subsidiary cameras, comprise upper communication interface circuit, female imaging circuit and power circuit, it is characterized in that also comprising the next communication interface circuit and female control circuit, described female control circuit is handled the information of described upper communication interface circuit and the information of described the next communication interface circuit and exchange.
Mother and subsidiary cameras is characterized in that also comprising power switch and the next power supply terminal, and described power switch is connected with described the next power supply terminal with described power circuit respectively, and controls its switching state by control circuit.
Mother and subsidiary cameras is characterized in that described female control circuit also comprises inquiry message transtation mission circuit and response message testing circuit.
Mother and subsidiary cameras is characterized in that also comprising sub-camera, and the son of a described sub-camera communication interface circuit is connected with the next communication interface circuit of described female.
Mother and subsidiary cameras is characterized in that described sub-camera also comprises inquiry message testing circuit and response message transtation mission circuit.
Adopt technique scheme, in conjunction with the following embodiment that will narrate, the technological progress that the present invention gives prominence to is to make mode that a plurality of digital camera heads can bus to be connected to the host computer of non-bus interface, and the average unit cost of camera is minimized.
Description of drawings
Figure is the electrical block diagram of camera of the present invention.
Embodiment
Embodiment 1
As shown in the figure, comprise female camera 1 and sub-camera 4.Female camera 1 links to each other with host computer by upper communication interface circuit.
Female camera 1 comprises the female imaging circuit, and it is via female control circuit, upper communication interface circuit and host computer exchange message.The female control circuit can be to operation such as deciphering from the information of upper communication interface circuit, control the operation such as set, take pictures of female imaging circuit then; The female control circuit also with the coding of the image data information in the female imaging circuit, is stored, or gives host computer by upper communication interface circuit transmission.
Female camera 1 also comprises the next communication interface circuit, power circuit and power switch 2.Power circuit is given female camera 1 self and sub-camera 4 power supplies, and this power circuit can directly be given sub-camera 4 power supplies; Can be sub-camera 4 power supplies also, and control the switching state of power switch 2 by the female control circuit by power switch 2 and the next power supply terminal 3 as shown in the figure.
Female camera 1 can work independently, and also can connect one or more sub-camera 4 associated working.
Female control circuit in female camera 1 can be with the information that receives from upper communication interface circuit, such as set information and photographing command, directly or behind decoding, cataloged procedure, issue sub-camera 4 through the next communication interface circuit, the sub-head control circuit of sub-camera 4 also can be by a son communication interface circuit with information, such as responding and image data, send to female camera 1.The female control circuit of female camera 1 receives the information that sub-camera 4 transmits by the next communication interface circuit, behind decoding, coding, this information is stored again or is uploaded to host computer by upper communication interface circuit.
Upper communication interface circuit can be the interface circuit that satisfies the RS-232 level standard, also can be the interface circuit through the output of triode negative circuit.
The next communication interface circuit is the bus-type interface circuit, and the circuit of bus-type has a variety of, comprises the Transistor-Transistor Logic level type, 232 level types, commonly used is the bus circuit of 485 types, the bus-type circuit all is prior art.
Control circuit in female camera 1 also comprises inquiry message transtation mission circuit and response message testing circuit, the inquiry message transtation mission circuit can regularly or send the detection inquiry message to sub-camera 4 at random, and the response message testing circuit is judged the operating state of sub-camera 4 according to the response scenarios of sub-camera 4.Sub-head control circuit in the sub-camera 4 comprises that also the inquiry that detects female camera detects the inquiry message testing circuit of information, with the response message transtation mission circuit that sends response message to female camera, working properly as fruit camera 4, in official hour, respond the inquiry of female camera 1.If response timeout or echo message are against regulation, the working state abnormal of sub-camera 4 is described, closed again after the female control circuit of female camera 1 can be controlled power switch 2 and disconnects, restart thereby allow power on again after sub-camera 4 outages.
Certainly, the working state monitoring circuit of itself can be set no longer in the sub-camera 4, also bigger picture-storage space can be set no longer, thereby reduce cost.
Claims (5)
1, mother and subsidiary cameras, comprise upper communication interface circuit, female imaging circuit and power circuit, it is characterized in that also comprising the next communication interface circuit and female control circuit, described female control circuit is handled the information of described upper communication interface circuit and the information of described the next communication interface circuit and exchange.
2, mother and subsidiary cameras as claimed in claim 1, it is characterized in that also comprising power switch (2) and the next power supply terminal (3), described power switch (2) is connected with described the next power supply terminal (3) with described power circuit respectively, and controls its switching state by control circuit.
3, mother and subsidiary cameras as claimed in claim 2 is characterized in that described female control circuit also comprises inquiry message transtation mission circuit and response message testing circuit.
4, as claim 2 or 3 described mother and subsidiary cameras, it is characterized in that also comprising sub-camera (4), the son of described sub-camera (a 4) communication interface circuit is connected with the next communication interface circuit of described female.
5, mother and subsidiary cameras as claimed in claim 4 is characterized in that described sub-camera (4) also comprises inquiry message testing circuit and response message transtation mission circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910106546A CN101540842A (en) | 2009-04-10 | 2009-04-10 | Mother and subsidiary cameras |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910106546A CN101540842A (en) | 2009-04-10 | 2009-04-10 | Mother and subsidiary cameras |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101540842A true CN101540842A (en) | 2009-09-23 |
Family
ID=41123810
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910106546A Pending CN101540842A (en) | 2009-04-10 | 2009-04-10 | Mother and subsidiary cameras |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101540842A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102739944A (en) * | 2012-05-10 | 2012-10-17 | 蒋耘晨 | Interactive type expandable camera |
| CN108933884A (en) * | 2017-05-26 | 2018-12-04 | 富泰华工业（深圳）有限公司 | Printed circuit board and lens control method |
| CN109803072A (en) * | 2017-11-17 | 2019-05-24 | 群光电子股份有限公司 | Image capture unit with power supply function of reset |
-
2009
- 2009-04-10 CN CN200910106546A patent/CN101540842A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102739944A (en) * | 2012-05-10 | 2012-10-17 | 蒋耘晨 | Interactive type expandable camera |
| CN108933884A (en) * | 2017-05-26 | 2018-12-04 | 富泰华工业（深圳）有限公司 | Printed circuit board and lens control method |
| CN109803072A (en) * | 2017-11-17 | 2019-05-24 | 群光电子股份有限公司 | Image capture unit with power supply function of reset |
| CN109803072B (en) * | 2017-11-17 | 2021-01-22 | 群光电子股份有限公司 | Image pick-up device with power supply reset function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20090923 |