CN102547102A - Camera equipment and image sensor replacing method - Google Patents
Camera equipment and image sensor replacing method Download PDFInfo
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- CN102547102A CN102547102A CN2010106092884A CN201010609288A CN102547102A CN 102547102 A CN102547102 A CN 102547102A CN 2010106092884 A CN2010106092884 A CN 2010106092884A CN 201010609288 A CN201010609288 A CN 201010609288A CN 102547102 A CN102547102 A CN 102547102A
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Abstract
The invention provides camera equipment comprising a main board system and an image sensing system. The main board system comprises a system chip and the image sensing system comprises an image sensor, a bus switch and a level switch. The bus switch is respectively connected with the system chip and the image sensor; the switch-on and switch-off of the bus switch are respectively corresponding to those of the image sensor and the system chip. One end of the level switch is grounded and the other end of the level switch is connected with the system chip; the closing and opening of the level switch are respectively corresponding to levels, which are received by the system ship and comprise a low level and a high level, of the level switch; and the switch-off and switch-on states of the system chip and the image sensor are controlled by the system chip according to the high level and low level of the level switch. The invention further relates to an image sensor replacing method.
Description
Technical field
The present invention relates to a kind of camera device, relate in particular to the image sensor replacing method of the conveniently replaced camera device of a kind of image sensor and this camera device.
Background technology
Present monitoring product, as have the webcam machine equipment of image sensor (like CMOS (Complementary Metal Oxide Semiconductor, complementary metal oxide semiconductors (CMOS))), comprise a main board system and an image sensing system.This main board system comprises the chip of high prices such as network chip, System on Chip/SoC (like the SOCH.264/MPEG-4 compression chip), system power supply (system power) chip; And the chip that mainly comprises in this image sensing system is image sensor (like the CMOS chip).For obtaining better monitoring effect, camera device need constantly be upgraded, and the upgrading of camera device mainly concentrates on the upgrading of image sensor, and the chip on the main board system can not change in the escalation process of camera device basically.
In the prior art, the replacing method of the image sensor in the camera device of connecting monitoring is: at first, and with the energising circuit outage of whole connection camera device; Then, change the operation of image sensor; At last, the energising circuit with this camera device is communicated with once more.Yet this image sensor replacing method upgrade cost is higher, and the replacing time is longer.
Summary of the invention
In view of this, easy camera device of a kind of image sensor replacing method and image sensor replacing method are provided.
A kind of camera device comprises a main board system and an image sensing system.This main board system comprises a System on Chip/SoC, and this System on Chip/SoC is used for system's control and handles image.This image sensing system comprises an image sensor, a bus switch and a level switch.This image sensor is used for sensing image.This bus switch links to each other respectively with this System on Chip/SoC and this image sensor, the connection of this bus switch with break off respectively should image sensor and the linking to each other and disconnection of this System on Chip/SoC.One end ground connection of this level switch; The other end links to each other with this System on Chip/SoC; The closure of this level switch is low level and high level with the level of opening respectively this should System on Chip/SoC received level switch; This System on Chip/SoC is disconnection and connection according to the high level of this level switch and the state of this bus switch of low level control, and then controls the disconnection and the connected state of this System on Chip/SoC and this image sensor.
A kind of image sensor replacing method of aforesaid camera device; May further comprise the steps: adjust this level switch; Make this System on Chip/SoC send open command, this bus switch is broken off, and then break off being connected of this System on Chip/SoC and this image sensor to this bus switch; Remove image sensor to be replaced, and install image sensor to be installed; Adjust this level switch; This System on Chip/SoC is sent to this bus switch be communicated with instruction; This bus switch is communicated with; Thereby make this System on Chip/SoC be communicated with also move instruction and in this image sensor has been installed, this has been installed image sensor and has transmitted image information according to the instruction of this System on Chip/SoC to this System on Chip/SoC, and image sensor was changed and finished this moment.
With respect to prior art, this camera device and image sensor replacing method only need be adjusted this level switch, promptly replaceable upgrading image sensor, and need not whole camera device outage; In addition, after the image sensor replacing finishes, only need adjust this level switch once more and can make camera device proceed the camera monitoring action.Therefore, the image sensor replacing method of this camera device can realize real-time hot plug replacing, and the replacing time is short, can reduce upgrade cost, can not exert an influence to other image sensing system of sharing main board system simultaneously.
Description of drawings
Fig. 1 is the Organization Chart of embodiment of the invention camera device.
Fig. 2 is that the image sensor of the camera device of Fig. 1 is changed flow chart.
The main element symbol description
System on Chip/SoC 102
ICR control circuit 106
Ethernet physical layer 108
Microphone 126
Two filter switchs 128
Level switch S1
YUV bus 134
I2C bus 136
Embodiment
To combine accompanying drawing that the present invention is done further explain below.
See also Fig. 1, first embodiment of the invention provides a kind of camera device 100, and this camera device 100 comprises a main board system 10 and an image sensing system 12.In the present embodiment, this camera device 100 is used for monitoring product.
This main board system 10 comprises a System on Chip/SoC (system-on-chip; SOC) 102, one audio encoding chip (audio code) 104, a pair of filter switch (Infrared Cut Removable, ICR) control circuit 106, an ethernet physical layer (Ethernet PHY) 108 and one network connector 110.
This System on Chip/SoC 102 has been integrated image processing, control circuit and network function, and in the present embodiment, this System on Chip/SoC 102 is for supporting H.264/MPEG-4 to wait the hardware compilation sign indicating number chip of multi-protocols; In addition, this System on Chip/SoC also is used for camera device 100 is carried out system's control.
This audio encoding chip 104 links to each other with this System on Chip/SoC 102, is used for audio frequency is encoded, and the coded data of audio frequency is transmitted in this System on Chip/SoC 102.
Two filter switchs (Infrared Cut Removable of this ICR control circuit 106 and System on Chip/SoC 102 and image sensing system 12; ICR; Two filter switchs 128 as shown in Figure 1) link to each other respectively; Be used for the instruction that receiving system chip 102 sends, and produce and to control signal to two filter switchs 128, carry out the switching of filter to control this pair filter switch 128.
This ethernet physical layer 108 links to each other with this System on Chip/SoC 102, and this network connector 110 links to each other with this ethernet physical layer 108.This network connector 110 is for being used to connect the connector of Internet or local area network (LAN), and like RJ-45 connector (claiming crystal head again), this System on Chip/SoC 102 is connected in this network connector 110 through ethernet physical layer 108, and then is connected in Internet or local area network (LAN).The monitoring server (figure do not show) of the main purpose of these System on Chip/SoC 102 networkings for connecting monitor terminal makes the monitor staff can observe the image that this camera device 100 is absorbed.
This image sensing system 12 comprises a camera lens module 122, an image sensor 124, a microphone 126 and a pair of filter switch 128.
This camera lens module 122 links to each other with this image sensor 124 and optical coupled, and this camera lens module 122 is used to obtain the monitoring image and transfers to this image sensor 124 and carries out sensing and handle.
This microphone 126 is used for the audio-frequency information in the acquisition monitoring zone, and the audio encoding chip 104 that the audio-frequency information that collects transfers to main board system 10 is carried out audio coding, and the audio-frequency information of this process coding transfers to this System on Chip/SoC 102 and handles subsequently.
This pair filter switch 128 comprises the cutoff filter and the visible region interferometric filter that can switch each other.On daytime, two filter switchs 128 switch to cutoff filter, and all infrared lights are filtered to obtain distortionless colour picture; In evening, ICR128 switches to the visible region interferometric filter, disturbs veiling glare to eliminate other, makes image sensor 124 can access distinct image.This pair filter switch 128 links to each other with the ICR control circuit 106 of main board system 10, filter is switched to the switching command that it sends to collect ICR control circuit 106.
This image sensing system 12 further comprises a level switch S1, a bus switch (bus switch) 130 and one electricallyerasable ROM (EEROM) (electrically erasable programmable read-only memory, EEPROM) 132.
The end ground connection of this level switch S1, the other end links to each other with this System on Chip/SoC 102, and level switch S1 is a normally closed switch, and promptly when image sensor 124 normal operations, level switch S1 is in closure state, and the two ends of level switch S1 conduct.The level signal of the level switch S1 that System on Chip/SoC 102 is received is defined as Detect_IO, when image sensor 124 normal operations, because level switch S1 ground connection and closure, so Detect_IO is low level, i.e. Detect_IO=Low.S1 opens when level switch, and when promptly the two ends of level switch S1 were broken off, Detect_IO was high level, i.e. Detect_IO=High.This level switch S1 can be designed to a button, and then pressing button can be adjusted closure and the open mode of level switch S1.
This bus switch 130 links to each other respectively with System on Chip/SoC 102, image sensor 124 and memory 132; When Detect_IO=Low; System on Chip/SoC 102 sends to bus switch 130 and is communicated with instruction; Make bus switch 130 be in connected state, at this moment, bus switch 130 is communicated with image sensor 124 and memory 132 respectively with System on Chip/SoC 102.In the present embodiment, this image sensor 124 is accomplished through being connected to the component vide bus (YUV bus) 134 that reaches between bus switch 130 and the System on Chip/SoC 102 between image sensor 124 and the bus switch 130 to this System on Chip/SoC 102 transmission video signals system; Memory 132 is connected with the signal of System on Chip/SoC 102 through being connected to the twin wire universal serial bus (I2C bus) 136 that reaches between bus switch 130 and the System on Chip/SoC 102 between memory 132 and the bus switch 130 to be accomplished; In addition; Further link to each other between bus switch 130 and the image sensor 124 through I2C bus 136, System on Chip/SoC 102 through between System on Chip/SoC 102 and the bus switch 130 and bus switch 130 instruct to image sensor 124 transmissions with the I2C bus 136 between the image sensor 124.
This memory 132 links to each other with this image sensor 124, is used to store the setup parameter information of this image sensor 124.
When Detect_IO=Low; Be that level switch S1 is when being in closure state; System on Chip/SoC 102 sends to bus switch 130 and is communicated with instruction; Make bus switch 130 be in connected state; System on Chip/SoC 102 is communicated with this memory 132 and obtains setup parameter from memory 132, and System on Chip/SoC 102 sends according to the instruction that this parameter information produced to image sensor 124 through I2C bus 136 then, makes image sensor 124 that monitoring video information is transferred to this System on Chip/SoC 102 through YUV bus 134 and carries out processed compressed.Transfer to monitoring server through System on Chip/SoC 102 processed video information through ethernet physical layer 108 and network connector 110, and be presented at (figure does not show) on the monitoring monitor.
When Detect_IO=High; Be level switch S1 when being in open mode, System on Chip/SoC 102 sends open command to bus switch 130, and then bus switch 130 breaks off; Be image sensor 124 and the be connected disconnection of memory 132 with System on Chip/SoC 102; At this moment, the camera function of camera device 100 suspends, and can change the action that image sensor 124 reaches at the new parameter information of memory 132 stored.After replacing finishes, level switch S1 is adjusted into closure state once more, proceed the camera monitoring action.
In the present embodiment, only needing level switch S1 adjustment (like pressing button) is open mode, promptly replaceable upgrading image sensor 124, and need not whole camera device 100 outages; When image sensor 124 change finish after, only needing once more level switch S1 adjustment (like pressing button once more) be closure state, can make camera device 100 proceed camera monitoring and move.So the image sensor replacing method of the camera device 100 of present embodiment can realize real-time hot plug replacing, the replacing time is short, can reduce upgrade cost, can not exert an influence to other image sensing system of sharing main board system simultaneously.
Be appreciated that; This level switch S1 can also be normal open switch; Be that level switch S1 is when being open mode; This System on Chip/SoC 102 is connected respectively with memory 132 with this image sensor 124, and when level switch S1 was closure state, this System on Chip/SoC 102 broke off respectively with this image sensor 124 and memory 132 mutually.
Please consult Fig. 1 and Fig. 2 in the lump, second embodiment of the invention provides a kind of image sensor replacing method, is used for the image sensor 124 of the camera device 100 of first embodiment is changed, and Fig. 2 is for changing the flow chart of image sensor 124.This image sensor replacing method may further comprise the steps:
At first, observe level switch S1 system not for open mode (S201), when level switch S1 does not open; Be that level switch S1 is a closure state, at this moment, Detect_IO=Low; The level signal that is the received level switch S1 of System on Chip/SoC 102 is low level (S202), at this moment, needs adjustment level switch S1 state (like the push switch button); Make level switch S1 be in open mode (S203), continue step S201.When level switch S1 is open mode, at this moment, Detect_IO=High; The level signal that is the received level switch S1 of System on Chip/SoC 102 is high level (S204); At this moment, System on Chip/SoC 102 sends open command to bus switch 130, makes bus switch 130 break off (S205); Be parting system chip 102 and being connected of image sensor 124 and memory 132, and make YUV bus 134 and I2C bus 136 obtain discharging (S206).
Secondly, image sensor to be replaced 124 (before the upgrading) is removed (207) from image sensing system 12, and image sensor to be installed (upgrading back) is installed on (S208) in the image sensing system 12.
At last; Adjustment level switch S1 is closure state (S209); At this moment; Detect_IO=Low, promptly the level signal of the received level switch S1 of System on Chip/SoC 102 is low level (S210), System on Chip/SoC 102 sends to be communicated with and instructs to bus switch 130; Make bus switch 130 be in connected state (S211); System on Chip/SoC 102 is communicated with this memory 132 and obtains setup parameter information (S212) from memory 132, and System on Chip/SoC 102 sends according to the instruction (S213) that this parameter information produced to image sensor 124 through I2C bus 136 then, makes image sensor 124 that monitoring video information is transferred to this System on Chip/SoC 102 through YUV bus 134 and carries out processed compressed (S214).Transfer to monitoring server through System on Chip/SoC 102 processed video information through ethernet physical layer 108 and network connector 110, and be presented on the monitor.So far, image sensor is changed and is finished.
In addition, those skilled in the art can also do other variation in spirit of the present invention, and certainly, these all should be included within the present invention's scope required for protection according to the variation that the present invention's spirit is done.
Claims (10)
1. camera device comprises:
One main board system comprises a System on Chip/SoC, and this System on Chip/SoC is used for system's control and handles image; And
One image sensing system comprises:
One image sensor, this image sensor is used for sensing image; It is characterized in that,
This image sensing system further comprises:
One bus switch, this bus switch links to each other respectively with this System on Chip/SoC and this image sensor, the connection of this bus switch with break off respectively should image sensor and the linking to each other and break off of this System on Chip/SoC, reach
One level switch; One end ground connection of this level switch; The other end links to each other with this System on Chip/SoC; The closure of this level switch is low level and high level with the level of opening respectively this should System on Chip/SoC received level switch, and this System on Chip/SoC for breaking off and connection, and then is controlled the disconnection and the connected state of this System on Chip/SoC and this image sensor according to the state of the high level of this level switch and this bus switch of low level control.
2. camera device as claimed in claim 1; It is characterized in that; This image sensing system further comprises an electricallyerasable ROM (EEROM); This electricallyerasable ROM (EEROM) is used to store the setup parameter information of this image sensor, and this electricallyerasable ROM (EEROM) links to each other with this System on Chip/SoC through this bus switch, and the connection of this bus switch and disconnection are respectively to should electricallyerasable ROM (EEROM) and being communicated with and disconnection of this System on Chip/SoC.
3. camera device as claimed in claim 2; It is characterized in that; Be connected with the I2C bus respectively between this bus switch and this electricallyerasable ROM (EEROM) and this System on Chip/SoC, this System on Chip/SoC reads the setup parameter information of this image sensor in this electricallyerasable ROM (EEROM) through this I2C bus.
4. camera device as claimed in claim 3; Wherein, Be connected with the I2C bus between this image sensor and this bus switch, this System on Chip/SoC sends the instruction according to this setup parameter information generating through the I2C bus between this image sensor and this bus switch to this image sensor.
5. camera device as claimed in claim 4 is characterized in that, is connected with the YUV bus respectively between this bus switch and this image sensor and this System on Chip/SoC, and this image sensor passes through this YUV bus to this System on Chip/SoC transmission of video information.
6. camera device as claimed in claim 1; It is characterized in that; This image sensing system further comprises a pair of filter switch; This pair filter switch comprises the cutoff filter and the visible region interferometric filter that can switch each other; This main board system further comprises a pair of filter switch control circuit, and this pair filter switch control circuit links to each other respectively with this pair filter switch with this System on Chip/SoC, and this pair filter switch is used to receive the switching command of this System on Chip/SoC and control the mutual switching that this pair filter switch carries out filter.
7. camera device as claimed in claim 1; It is characterized in that; This main board system further comprises the ethernet physical layer that links to each other with this System on Chip/SoC; And the network connector that links to each other with this ethernet physical layer, this ethernet physical layer and network connector are used for this System on Chip/SoC is linked to each other with local area network (LAN) or Internet.
8. the image sensor replacing method of a camera device as claimed in claim 1 may further comprise the steps:
Adjust this level switch, make this System on Chip/SoC send open command, this bus switch is broken off, and then break off being connected of this System on Chip/SoC and this image sensor to this bus switch;
Remove image sensor to be replaced, and install image sensor to be installed;
Adjust this level switch; This System on Chip/SoC is sent to this bus switch be communicated with instruction; This bus switch is communicated with; Thereby make this System on Chip/SoC be communicated with also move instruction and in this image sensor has been installed, this has been installed image sensor and has transmitted image information according to the instruction of this System on Chip/SoC to this System on Chip/SoC, and image sensor was changed and finished this moment.
9. image sensor replacing method as claimed in claim 8; It is characterized in that; The image sensing system further comprises an electricallyerasable ROM (EEROM), and this electricallyerasable ROM (EEROM) is used to store the setup parameter information of this image sensor, and this electricallyerasable ROM (EEROM) links to each other with this System on Chip/SoC through this bus switch; When this bus switch breaks off; This electricallyerasable ROM (EEROM) breaks off with this System on Chip/SoC and being connected, and when this bus switch was communicated with, this electricallyerasable ROM (EEROM) was communicated with this System on Chip/SoC; This System on Chip/SoC reads the setup parameter information of the image sensor in this electricallyerasable ROM (EEROM) and transmits the instruction according to this setup parameter information generating to this image sensor, makes this image sensor to this System on Chip/SoC transmission image information.
10. image sensor replacing method as claimed in claim 8 is characterized in that, when this level switch of adjustment when being open mode, this System on Chip/SoC receives this level switch to be high level and to send open command to this bus switch; When this level switch of adjustment when being closure state, this System on Chip/SoC receives this level switch to be low level and to send to this bus switch and to be communicated with instruction.
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| CN201010609288.4A CN102547102B (en) | 2010-12-28 | 2010-12-28 | Camera equipment and image sensor replacing method |
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| CN201010609288.4A CN102547102B (en) | 2010-12-28 | 2010-12-28 | Camera equipment and image sensor replacing method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108200322A (en) * | 2018-02-01 | 2018-06-22 | 天津天地伟业信息系统集成有限公司 | A kind of empty burnt solution of video camera camera lens under white-black pattern |
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| CN1701598A (en) * | 2003-05-30 | 2005-11-23 | 索尼株式会社 | Image pickup device and image pickup method |
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