CN215120942U - A data access circuit and a tilting camera head - Google Patents
A data access circuit and a tilting camera head Download PDFInfo
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- CN215120942U CN215120942U CN202120803235.XU CN202120803235U CN215120942U CN 215120942 U CN215120942 U CN 215120942U CN 202120803235 U CN202120803235 U CN 202120803235U CN 215120942 U CN215120942 U CN 215120942U
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- 238000013500 data storage Methods 0.000 claims abstract description 21
- 238000001514 detection method Methods 0.000 claims abstract description 17
- 239000004065 semiconductor Substances 0.000 claims description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 230000003068 static effect Effects 0.000 description 3
- 230000005611 electricity Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
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Abstract
The utility model relates to a circuit technical field. The utility model discloses a data access circuit and oblique photography cloud platform, wherein, the data access circuit, be applicable to the data storage and the reading of the equipment that has the SD card storage, including draw-in groove mainboard and data storage unit, the draw-in groove mainboard is equipped with switches detection circuitry, change-over switch circuit, equipment interface circuit and card reader interface circuit pass through change-over switch circuit alternative and are connected with the data storage unit, it is by main power source interface power supply or by the USB power supply to switch over detection circuitry, and drive change-over switch circuit according to the testing result and carry out corresponding the switching over, equipment interface circuit is connected with the data reading and writing port of equipment, card reader interface circuit is USB3.0 or above interface circuit. The utility model discloses data reading is fast, need not to carry special power and supplies power, and the simple operation improves the operating efficiency, and security and reliability are high, long service life.
Description
Technical Field
The utility model belongs to the technical field of the circuit, specifically relate to a data access circuit and oblique photography cloud platform.
Background
After the operation of the tilt photography tripod head is finished, the data shot by the camera of the tilt photography tripod head needs to be read, and the existing data reading schemes mainly include the following two types:
the method has the disadvantages that the USB interface of the camera used for oblique photography at present is mostly USB2.0 standard, the reading speed limit can only reach 480Mbps, the theoretical reading speed is 60MB/s, and the method takes a large amount of waiting time for operating personnel to read data considering that the data volume is huge in actual operation; in addition, the camera inside the pan/tilt head can read data through the USB line only when the camera is powered on and started, which is not beneficial for outdoor operators to read data without carrying a power supply or under the condition that the power supply is insufficient.
The method has the disadvantages that the card seat assembly module is in physical movable connection with the system, the phenomena of poor contact and the like caused by interface oxidation and looseness can be caused after long-time use, and the service life of the interface is lower; meanwhile, the data storage module needs to be manually plugged and unplugged, so that the operation is complicated, and the data module is easily damaged by human static electricity in the operation process, thereby causing huge loss.
In addition, for historical reasons, many other existing devices with SD card (including TF card) storage are equipped with a low-speed USB2.0 protocol, and have the problem of slow reading speed, and improvement is needed.
Disclosure of Invention
An object of the utility model is to provide a data access circuit and oblique photography cloud platform are used for solving the technical problem that the above-mentioned exists.
In order to achieve the above object, the utility model adopts the following technical scheme: a data access circuit is suitable for data storage and reading of equipment with SD card storage and comprises a card slot mainboard and a data storage unit, wherein the card slot mainboard is provided with a switching detection circuit, a switching circuit, an equipment interface circuit and a card reader interface circuit, the equipment interface circuit and the card reader interface circuit are alternatively connected with the data storage unit through the switching circuit, the switching detection circuit is used for detecting whether the card slot mainboard is powered by a main power supply interface or a USB (universal serial bus) interface, the switching circuit is driven to carry out corresponding switching according to a detection result, the equipment interface circuit is connected with a data read-write port of the equipment, and the card reader interface circuit is an interface circuit with a USB3.0 or more.
Further, the data storage unit is a TF card.
Furthermore, the card slot mainboard is provided with a card seat interface circuit, and the TF card is connected with the change-over switch circuit through the card seat interface circuit.
Further, the change-over switch circuit is implemented by two semiconductor electronic switches.
Further, the bandwidth of the semiconductor electronic switch is larger than 1.5 GHz.
Further, the switching detection circuit is realized by adopting a single Schmitt trigger inverter.
Furthermore, the card reader also comprises a hub, and the card reader interface circuit is connected with external reading equipment through the hub.
Furthermore, the concentrator is a 10Gbps concentrator, and the output interface is a TYPE-C interface.
Further, the device is a camera.
The utility model also discloses a tilt photography cloud platform is equipped with the data access circuit of the aforesaid.
The utility model has the advantages of:
the utility model discloses data reading is fast, need not to carry special power supply and supplies power, and the simple operation need not to consider the reading logic of original equipment, improves the operating efficiency, and data storage and reading integration setting need not the plug, has avoided interface oxidation, not hard up the problem that causes contact failure and human static damage data module, and security and reliability are high, long service life.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a circuit structure block diagram of a first embodiment of the present invention;
fig. 2 is a circuit diagram of a change-over switch circuit according to a first embodiment of the present invention;
fig. 3 is a circuit diagram of a card socket interface circuit according to a first embodiment of the present invention;
fig. 4 is a circuit diagram of a switching detection circuit according to a first embodiment of the present invention.
Fig. 5 is a circuit block diagram of a second embodiment of the present invention.
Detailed Description
To further illustrate the embodiments, the present invention provides the accompanying drawings. The accompanying drawings, which are incorporated in and constitute a part of this disclosure, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the embodiments. With these references, one of ordinary skill in the art will appreciate other possible embodiments and advantages of the present invention. Elements in the figures are not drawn to scale and like reference numerals are generally used to indicate like elements.
The present invention will now be further described with reference to the accompanying drawings and detailed description.
Example one
As shown in fig. 1, a data access circuit is suitable for data storage and reading of a device with SD card storage, in this embodiment, the device is a camera of an oblique photography pan-tilt head, but is not limited thereto, and in some embodiments, the device may also be other existing devices with SD card storage and equipped with a USB2.0 or below data reading interface.
The card slot comprises a card slot main board 100 and a data storage unit 3, wherein the card slot main board 100 is provided with a switching detection circuit 1, a switching switch circuit 2, an equipment interface circuit and a card reader interface circuit 4, in the specific embodiment, the equipment interface circuit is a camera card seat interface circuit 5 and is used for being connected with an original data read-write port of a camera 7 (at this moment, an original SD card of the camera 7 can be removed, namely, image data acquired by the camera 7 is not stored in the original SD card any more).
The camera card seat interface circuit 5 and the card reader interface circuit 4 are alternatively connected to the data storage unit 3 through the switch circuit 2, the switch detection circuit 1 is configured to detect whether the card slot motherboard 100 is powered by the main power interface or the USB (i.e., powered by the card reader interface circuit 4), and drive the switch circuit 2 to perform corresponding switching according to the detection result, the card reader interface circuit 4 is an interface circuit with USB3.0 or more, and the card reader interface circuit 4 is configured to be connected to an external reading device.
In this embodiment, the data storage unit 3 is a TF card, but in other embodiments, the data storage unit 6 may also be an SD card or other existing data storage devices.
Further, the card slot main board 100 is provided with a card seat interface circuit 6, the TF card is connected with the change-over switch circuit 2 through the card seat interface circuit 6, and the TF card is convenient to assemble and convenient to replace by arranging the card seat interface circuit 6.
In this embodiment, the change-over switch circuit 2 is implemented by using two semiconductor electronic switches, and the structure is simple and easy to implement, but the invention is not limited thereto.
Preferably, in this embodiment, the bandwidth of the semiconductor electronic switch is greater than 1.5GHz, so as to further increase the access speed, in this embodiment, the switch circuit 2 is implemented by using analog switch ICs 200 and 201 with a model of TMUX1574RSVR, the bandwidth of the analog switch ICs 200 and 201 is 2GHz, and the specific circuit structure is shown in fig. 2, which is not described in detail.
Preferably, in this embodiment, the switching detection circuit 1 is implemented by using a single schmitt trigger inverter U201 with a model number SN74AHC1G14D, which is simple in structure and easy to implement, and the specific circuit is shown in fig. 4, but not limited thereto.
In this embodiment, the card socket interface circuit 6 is implemented by using a connector J200 with model 47219 and 2001, and the specific circuit is shown in fig. 3. Of course, in other embodiments, the socket interface circuit 6 may be implemented with other connectors.
The working process is as follows:
when the data access circuit is used, the data access circuit is assembled in the oblique photography holder, the original SD card of the camera 7 is removed, and the original data read-write port of the camera 7 is connected with the camera card seat interface circuit 5. When the switching detection circuit 1 detects that the card slot main board 100 is powered by a main power interface, namely the oblique photography holder is powered by the main power, and the camera 7 is in a working state to take a picture at the moment, the switching switch circuit 2 is driven to switch the camera card seat interface circuit 5 to be connected with the data storage unit 3(TF card), and the camera 7 can normally read and write the TF card at the moment; when the switching detection circuit 1 detects that the card slot main board 100 is powered by the USB, that is, the card reader interface circuit 4 is connected to the computer 8 (which indicates that data needs to be read at this time), the switching switch circuit 2 is driven to switch the card reader interface circuit 4 to be connected to the data storage unit 3(TF card), the computer 8 can directly read data of the TF card (without considering the original reading logic of the camera 7 or providing a power supply to start the camera 7), the highest reading speed can reach 160MB/S, the operation efficiency is improved, the data storage and reading are integrally set, plugging and unplugging are not required, the problems of poor contact caused by oxidation and looseness of the interface and the damage of a data module caused by human static electricity are avoided, the safety and reliability are high, and the service life is long.
Example two
As shown in fig. 5, in this embodiment, the number of the cameras 7 of the tilt head is multiple, and if there are 5 cameras, the number of the data access circuits is also 5 accordingly, the camera socket interface circuit 5 of each data access circuit is connected to the original data read/write port of each camera 7, and the card reader interface circuit 4 of each data access circuit is connected to the computer 8 through a hub 9, so as to further reduce the number of interfaces.
Preferably, in this embodiment, the hub 9 is a 10Gbps hub, and the output interface is a TYPE-C interface, so as to further improve the reading speed, but the invention is not limited thereto.
The utility model also discloses a tilt photography cloud platform is equipped with foretell data access circuit.
While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. A data access circuit is suitable for data storage and reading of a device with SD card storage, and is characterized in that: the card slot mainboard is provided with a switching detection circuit, a switching switch circuit, an equipment interface circuit and a card reader interface circuit, wherein the equipment interface circuit and the card reader interface circuit are alternatively connected with the data storage unit through the switching switch circuit, the switching detection circuit is used for detecting whether the card slot mainboard is powered by a main power interface or a USB (universal serial bus) and driving the switching switch circuit to carry out corresponding switching according to a detection result, the equipment interface circuit is connected with a data read-write port of equipment, and the card reader interface circuit is an interface circuit of USB3.0 or more.
2. The data access circuit of claim 1, wherein: the data storage unit is a TF card.
3. The data access circuit of claim 2, wherein: the card slot mainboard is provided with a card seat interface circuit, and the TF card is connected with the change-over switch circuit through the card seat interface circuit.
4. The data access circuit of claim 1, wherein: the change-over switch circuit is implemented using two semiconductor electronic switches.
5. The data access circuit of claim 4, wherein: the bandwidth of the semiconductor electronic switch is larger than 1.5 GHz.
6. The data access circuit of claim 1, wherein: the switching detection circuit is implemented using a single schmitt trigger inverter.
7. The data access circuit of claim 1, wherein: the card reader interface circuit is connected with external reading equipment through the concentrator.
8. The data access circuit of claim 7, wherein: the concentrator is a 10Gbps concentrator, and the output interface is a TYPE-C interface.
9. The data access circuit of claim 1, wherein: the device is a camera.
10. A tilt photography cloud platform which is characterized in that: data access circuitry as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120803235.XU CN215120942U (en) | 2021-04-20 | 2021-04-20 | A data access circuit and a tilting camera head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120803235.XU CN215120942U (en) | 2021-04-20 | 2021-04-20 | A data access circuit and a tilting camera head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215120942U true CN215120942U (en) | 2021-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120803235.XU Expired - Fee Related CN215120942U (en) | 2021-04-20 | 2021-04-20 | A data access circuit and a tilting camera head |
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| Country | Link |
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| CN (1) | CN215120942U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113014787A (en) * | 2021-04-20 | 2021-06-22 | 厦门致睿智控地信科技有限公司 | Data access circuit and tilt photography cloud platform |
-
2021
- 2021-04-20 CN CN202120803235.XU patent/CN215120942U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113014787A (en) * | 2021-04-20 | 2021-06-22 | 厦门致睿智控地信科技有限公司 | Data access circuit and tilt photography cloud platform |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211210 |