CN112565643A - Image reading system and method - Google Patents
Image reading system and method Download PDFInfo
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- CN112565643A CN112565643A CN202011330539.5A CN202011330539A CN112565643A CN 112565643 A CN112565643 A CN 112565643A CN 202011330539 A CN202011330539 A CN 202011330539A CN 112565643 A CN112565643 A CN 112565643A
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- 238000000034 method Methods 0.000 title claims abstract description 14
- 238000012545 processing Methods 0.000 claims abstract description 22
- 238000004891 communication Methods 0.000 claims description 37
- 230000003321 amplification Effects 0.000 claims description 13
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 13
- 238000001514 detection method Methods 0.000 claims description 12
- 238000011161 development Methods 0.000 abstract description 11
- 230000010354 integration Effects 0.000 abstract description 6
- 238000002054 transplantation Methods 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N25/00—Circuitry of solid-state image sensors [SSIS]; Control thereof
- H04N25/70—SSIS architectures; Circuits associated therewith
- H04N25/71—Charge-coupled device [CCD] sensors; Charge-transfer registers specially adapted for CCD sensors
- H04N25/75—Circuitry for providing, modifying or processing image signals from the pixel array
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J1/00—Photometry, e.g. photographic exposure meter
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/10—Radiation pyrometry, e.g. infrared or optical thermometry using electric radiation detectors
- G01J5/20—Radiation pyrometry, e.g. infrared or optical thermometry using electric radiation detectors using resistors, thermistors or semiconductors sensitive to radiation, e.g. photoconductive devices
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/10—Radiation pyrometry, e.g. infrared or optical thermometry using electric radiation detectors
- G01J5/20—Radiation pyrometry, e.g. infrared or optical thermometry using electric radiation detectors using resistors, thermistors or semiconductors sensitive to radiation, e.g. photoconductive devices
- G01J5/22—Electrical features thereof
- G01J5/24—Use of specially adapted circuits, e.g. bridge circuits
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N25/00—Circuitry of solid-state image sensors [SSIS]; Control thereof
- H04N25/70—SSIS architectures; Circuits associated therewith
- H04N25/76—Addressed sensors, e.g. MOS or CMOS sensors
Abstract
The invention relates to the technical field of ultraviolet light, visible light or infrared light sensing, in particular to an image reading system and a method, wherein data information of a sensor array area module is read in a reading circuit chip unit of a sensor; calculating and processing the read data information through an operation module; storing the data information after calculation processing by using a storage module; and exchanging data between the data information after calculation and the outside. The operation and the related storage circuit are embedded into the reading circuit, so that the operation and the compensation can be completely solved in the IC, the integration level of the whole system is higher, the compatibility with a mature CMOS camera matching system at an application end is better, the transplantation and the development are very convenient, and the development period and the workload are greatly shortened. The scheme can also be extended to other image reading circuit systems which need to be corrected due to mutual deviation of the sensor units.
Description
Technical Field
The invention relates to the technical field of ultraviolet light, visible light or infrared light sensing, in particular to an image reading system and method.
Background
In the technical field of ultraviolet light, visible light or infrared light sensing, particularly, a microbolometer Focal Plane Array (FPA) has higher sensitivity, and is an uncooled infrared focal plane array detector which is most widely applied. The working principle is that the temperature of the thermosensitive material changes after absorbing incident infrared radiation, so that the resistance value of the thermosensitive material changes, and the magnitude of an infrared radiation signal is detected by measuring the change of the resistance value.
High performance microbolometer sensor cells have a certain variation in the fabrication of the sensor in each pixel due to the manufacturing process. In order to counteract this deviation, it is conventional practice to participate in the operation by a circuit module other than the image readout circuit chip, and to transmit the operated data to the readout circuit chip for compensation processing. For example, the patent of invention with publication number CN102735344B discloses a readout circuit of an infrared focal plane array detector, which comprises at least two column readout circuits, each of which comprises a first transistor, a second transistor, a reference resistor and a column output terminal; the source of the first transistor is connected to a microbolometer in the microbolometer array. The scheme also adopts a circuit module except the image reading circuit chip to carry out secondary compensation operation so as to improve the precision.
However, the above-described scheme has the following problems: circuit blocks other than the readout circuit are required to participate in the incoming operation, and the workload of external communication needs to be increased. Because the related hardware of the traditional large-scale application CMOS CIS camera does not have the part of arithmetic circuit and communication interface circuit, the CMOS CIS camera cannot be compatible with the mature hardware and software system, and is very disadvantageous in development and popularization.
Disclosure of Invention
The invention provides an image reading system and method, which solve the technical problem that the image reading hardware and software of the microbolometer are difficult to be compatible.
The invention provides an image reading system for solving the technical problems, which comprises a reading circuit chip unit, a storage module and an operation module, wherein the reading circuit chip unit comprises a sensor array area module and a communication module;
the operation module is used for calculating and processing data information of the sensor array area module;
the storage module is used for storing the data information after calculation processing;
the communication module is used for providing a communication interface with the outside.
Preferably, the image reading system further comprises a cmos camera, and the cmos camera is electrically connected to the communication interface.
Preferably, the readout circuit chip unit comprises a readout circuit for reading the sensor array area module, and the operation module is connected with an output end of the readout circuit in a communication mode.
Preferably, the readout circuit includes a detection circuit and a signal amplification circuit, the detection circuit is configured to detect a signal generated on the sensor array area module, the signal amplification circuit is configured to amplify an output signal of the detection circuit, and an output end of the amplification circuit is electrically connected to an input end of the operation module.
Preferably, the detection circuit includes a line scanning circuit, the line scanning circuit is configured to sequentially output a readout control signal to each line of the sensor array area module, and the sensor array area module outputs internal charges to the signal amplification circuit according to column lines under the control of the readout control signal.
Preferably, the communication module adopts protocols of RS485 and II2And the communication mode of the C or CAN is in communication connection with the outside.
Preferably, the sensor is a microbolometer sensor, a visible light sensor or an ultraviolet light sensor.
The present invention also provides an image reading method, comprising:
reading data information of a sensor array area module in a reading circuit chip unit of a sensor;
calculating and processing the read data information through an operation module;
storing the data information after calculation processing by using a storage module;
and exchanging data between the data information after calculation and the outside.
Preferably, a readout circuit chip unit is arranged in each sensor, and each readout circuit chip unit comprises a storage module and an operation module.
Has the advantages that: the invention provides an image reading system and method, comprising a reading circuit chip unit, wherein the reading circuit chip unit comprises a sensor array area module, a communication module, a storage module and an operation module; reading data information of a sensor array area module in a reading circuit chip unit of a sensor; calculating and processing the read data information through an operation module; storing the data information after calculation processing by using a storage module; and exchanging data between the data information after calculation and the outside. The operation and the related storage circuit are embedded into the reading circuit, so that the operation and the compensation can be completely solved in the IC, the integration level of the whole system is higher, the compatibility with a mature CMOS camera matching system at an application end is better, the transplantation and the development are very convenient, and the development period and the workload are greatly shortened. The scheme can also be extended to other image reading circuit systems which need to be corrected due to mutual deviation of the sensor units.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical solutions of the present invention more clearly understood and to implement them in accordance with the contents of the description, the following detailed description is given with reference to the preferred embodiments of the present invention and the accompanying drawings. The detailed description of the present invention is given in detail by the following examples and the accompanying drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:
FIG. 1 is a functional schematic of an image readout system of the present invention;
FIG. 2 is a prior art functional schematic of an image readout system of the present invention;
fig. 3 is a schematic flow chart of the image readout method of the present invention.
Detailed Description
The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention. The invention is described in more detail in the following paragraphs by way of example with reference to the accompanying drawings. Advantages and features of the present invention will become apparent from the following description and from the claims. It is to be noted that the drawings are in a very simplified form and are not to precise scale, which is merely for the purpose of facilitating and distinctly claiming the embodiments of the present invention.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
As shown in fig. 1, the present invention provides an image reading system, which includes a reading circuit chip unit, wherein the reading circuit chip unit includes a sensor array area module and a communication module, and the reading circuit chip unit further includes a storage module and an operation module;
the operation module is used for calculating and processing data information of the sensor array area module;
the storage module is used for storing the data information after calculation processing;
the communication module is used for providing a communication interface with the outside.
The signal reading, processing and storing of the sensor array area module are all carried out in an IC chip and integrated into a whole, and then data exchange is carried out with the outside through a general interface of the communication module. The operation and associated memory circuits are embedded within the read circuit so that the operation and compensation can be completely resolved within the IC. The benefits of this are: the integration level is higher, and the system is compatible with a mature CMOS camera matching system at an application end, so that the transplantation and the development are very convenient, and the development period and the workload are greatly shortened. The sensor is a microbolometer sensor, a visible light sensor or an ultraviolet light sensor. The microbolometer sensor is further explained below as an example.
The image readout circuit principle of the prior art microbolometer sensor unit is shown in fig. 2, in which the circuit module 1 is a readout circuit chip and the off-chip circuit module 2 (which may be 1 or more separate discrete circuit modules) is another discrete circuit module. The module 2 (at least comprising an operation module, a storage module and a communication module) needs to operate the result output by the module 1, stores the operation result in a corresponding storage unit, and transmits the operation result to the circuit module through a communication interface according to a certain protocol.
Preferably, the image reading system further comprises a cmos camera, and the cmos camera is electrically connected to the communication interface. The whole read-out circuit chip unit can be communicated with the outside through a communication interface as a whole standard component, for example, a COMS camera or other components using a microbolometer sensor can be connected through the communication interface. The communication interface can be made into an interface of a standard protocol, is convenient to connect and use, and can be used in a plug-and-play mode.
Preferably, the readout circuit chip unit includes a readout circuit for reading the sensor array area module, and the operation module is connected to an output of the readout circuit in a communication manner. The reading circuit is used for reading data in the sensor and then transmitting the data to the operation module for data processing, and as another scheme, the reading circuit can be designed in the operation module, so that circuit modules and wiring are reduced, the use space is reduced, and the system is smaller.
Preferably, the readout circuit includes a detection circuit and a signal amplification circuit, the detection circuit is configured to detect a signal generated on the sensor array area module, the signal amplification circuit is configured to amplify an output signal of the detection circuit, and an output end of the amplification circuit is electrically connected to an input end of the operation module. The detection circuit is the prior art in the field, and is used for reading data of the sensor array area module, amplifying the signals through the signal amplification circuit, and finally transmitting the signals to the operation module for operation.
Preferably, the detection circuit includes a line scanning circuit, the line scanning circuit is configured to sequentially output a readout control signal to each line of the sensor array area module, and the sensor array area module outputs internal charges to the signal amplification circuit according to column lines under the control of the readout control signal. The sensor array area module comprises a plurality of rows and columns of data packets, and the data packets are individually controlled line by line through the line scanning circuit, so that the data of the sensor array area module are orderly output to the signal amplification circuit, and the subsequent data can be conveniently classified and processed.
In the preferable scheme, the communication module adopts protocols of RS485 and II2And the communication mode of the C or CAN is in communication connection with the outside. The signal communication protocol can be a wired mode or a wireless mode, and is specifically formulated according to actual use requirements. The communication can be carried out in an encryption mode by adopting a standard protocol or a non-universal self-defined protocol, so that the information safety is improved.
As shown in fig. 3, an embodiment of the present invention further provides an image reading method, including:
reading data information of a sensor array area module in a reading circuit chip unit of a sensor;
calculating and processing the read data information through an operation module;
storing the data information after calculation processing by using a storage module;
and exchanging data between the data information after calculation and the outside.
The method is applied to the image highlighting system. The signal reading, processing and storing of the sensor array area module are all carried out in an IC chip and integrated into a whole, and then data exchange is carried out with the outside through a general interface of the communication module. The operation and associated memory circuits are embedded within the read circuit so that the operation and compensation can be completely resolved within the IC. The benefits of this are: the integration level is higher, and the system is compatible with a mature CMOS camera matching system at an application end, so that the transplantation and the development are very convenient, and the development period and the workload are greatly shortened. Wherein the sensor is a microbolometer sensor, a visible light sensor or an ultraviolet light sensor.
Preferably, each sensor is provided with a readout circuit chip unit, and each readout circuit chip unit comprises a storage module and an operation module. Therefore, each read-out circuit chip unit corresponds to one sensor array area module, one communication module, one storage module and one operation module, the integration level is high, and the modules are clear.
Has the advantages that: the invention provides an image reading system and method, comprising a reading circuit chip unit, wherein the reading circuit chip unit comprises a sensor array area module, a communication module, a storage module and an operation module; reading data information of a sensor array area module in a reading circuit chip unit of a sensor; calculating and processing the read data information through an operation module; storing the data information after calculation processing by using a storage module; and exchanging data between the data information after calculation and the outside. The operation and the related storage circuit are embedded into the reading circuit, so that the operation and the compensation can be completely solved in the IC, the integration level of the whole system is higher, the compatibility with a mature CMOS camera matching system at an application end is better, the transplantation and the development are very convenient, and the development period and the workload are greatly shortened. The scheme can also be extended to other image reading circuit systems which need to be corrected due to mutual deviation of the sensor units.
The foregoing is merely a preferred embodiment of the invention and is not intended to limit the invention in any manner; the present invention may be readily implemented by those of ordinary skill in the art as illustrated in the accompanying drawings and described above; however, those skilled in the art should appreciate that they can readily use the disclosed conception and specific embodiments as a basis for designing or modifying other structures for carrying out the same purposes of the present invention without departing from the scope of the invention as defined by the appended claims; meanwhile, any changes, modifications, and evolutions of the equivalent changes of the above embodiments according to the actual techniques of the present invention are still within the protection scope of the technical solution of the present invention.
Claims (9)
1. An image readout system, comprising a readout circuit chip unit including a sensor array area module and a communication module, characterized in that: the reading circuit chip unit also comprises a storage module and an operation module;
the operation module is used for calculating and processing data information of the sensor array area module;
the storage module is used for storing the data information after calculation processing;
the communication module is used for providing a communication interface with the outside.
2. The image readout system of claim 1, further comprising a cmos camera electrically connected to said communication interface.
3. The image readout system of claim 1, wherein the readout circuit chip unit comprises a readout circuit for reading the sensor array area module, and the operation module is communicatively connected to an output of the readout circuit.
4. The image readout system according to claim 3, wherein the readout circuit includes a detection circuit for detecting the signal generated on the sensor array area module, and a signal amplification circuit for amplifying an output signal of the detection circuit, and an output terminal of the amplification circuit is electrically connected to an input terminal of the operation module.
5. The image readout system according to claim 4, wherein the detection circuit includes a row scanning circuit for sequentially outputting readout control signals to each row of the sensor array area block, the sensor array area block outputting internal charges to the signal amplification circuit by column lines under control of the readout control signals.
6. The image readout system of claim 1, wherein the communication module employs a protocol of RS485, II2And the communication mode of the C or CAN is in communication connection with the outside.
7. The image readout system of claim 1, wherein the sensor is a microbolometer sensor, a visible light sensor, or an ultraviolet light sensor.
8. An image reading method, comprising:
reading data information of a sensor array area module in a reading circuit chip unit of a sensor;
calculating and processing the read data information through an operation module;
storing the data information after calculation processing by using a storage module;
and exchanging data between the data information after calculation and the outside.
9. The image readout method according to claim 8, characterized in that: each sensor is internally provided with a reading circuit chip unit, and each reading circuit chip unit comprises a storage module and an operation module.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011330539.5A CN112565643A (en) | 2020-11-24 | 2020-11-24 | Image reading system and method |
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| CN202011330539.5A CN112565643A (en) | 2020-11-24 | 2020-11-24 | Image reading system and method |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101500095A (en) * | 2008-01-29 | 2009-08-05 | 索尼株式会社 | Solid-state image sensing device, method for reading signal of solid-state image sensing device, and image pickup apparatus |
| CN102261958A (en) * | 2011-07-07 | 2011-11-30 | 清华大学 | Method for reading out high-accuracy signal |
| CN106027924A (en) * | 2016-05-11 | 2016-10-12 | 吉林大学 | Digital correction method for array analog to digital converter of high-performance CMOS image sensor |
| CN206993236U (en) * | 2016-05-10 | 2018-02-09 | 半导体元件工业有限责任公司 | A kind of imaging sensor and system |
| CN111246138A (en) * | 2020-01-17 | 2020-06-05 | 北京安酷智芯科技有限公司 | Uncooled infrared image sensor and correction method thereof |
-
2020
- 2020-11-24 CN CN202011330539.5A patent/CN112565643A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101500095A (en) * | 2008-01-29 | 2009-08-05 | 索尼株式会社 | Solid-state image sensing device, method for reading signal of solid-state image sensing device, and image pickup apparatus |
| CN102261958A (en) * | 2011-07-07 | 2011-11-30 | 清华大学 | Method for reading out high-accuracy signal |
| CN206993236U (en) * | 2016-05-10 | 2018-02-09 | 半导体元件工业有限责任公司 | A kind of imaging sensor and system |
| CN106027924A (en) * | 2016-05-11 | 2016-10-12 | 吉林大学 | Digital correction method for array analog to digital converter of high-performance CMOS image sensor |
| CN111246138A (en) * | 2020-01-17 | 2020-06-05 | 北京安酷智芯科技有限公司 | Uncooled infrared image sensor and correction method thereof |
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Application publication date: 20210326 |