Multifunctional card reader for TDC card

Abstract

The invention provides a TDC card multifunctional card reader, and relates to the field of card readers, and the TDC card multifunctional card reader comprises a housing mechanism which is internally provided with a printed board assembly; the printed board assembly comprises a first printed board, a second printed board and a TDC card connector, the first printed board and the second printed board are connected through an inter-board connector, and the TDC card connector is connected to the second printed board; the printed board assembly is connected with a computer through a USB3.0 interface, and the printed board assembly is connected with a TDC card through a TDC card connector; the first printed board has the function of converting 5V voltage input from the USB port into a power supply required by an internal chip of the card reader; the second printed board is used for interconnecting and intercommunicating the USB2.0 bus and the USB3.0 bus with the TDC data bus and outputting state indication at the same time, so that a user can monitor the state of the card reader. The special data reading device provided by the invention is convenient to carry, simple in interface and convenient to supply power, so that the purposes of reducing personnel allocation, improving working efficiency and relieving working intensity are achieved, and data accuracy and equipment safety can be ensured.

Description

Technical Field

[0001] The present invention relates to the field of card readers, in particular to a TDC card multifunctional reader. Background Art

[0002] Currently, maintenance personnel often rely on fixed, non-portable data transfer cards to access data, such as those that transmit data via the PCI bus. These devices are not user-friendly for on-the-go missions, making data access before and after missions extremely inconvenient, significantly impacting the effectiveness of data copying, processing, and identification. Summary of the Invention

[0003] The present invention provides a TDC card multifunctional reader to solve the technical problems raised by the above background technology.

[0004] In order to solve the above technical problems, the present invention discloses a TDC card multifunctional reader, comprising a housing mechanism, wherein a printed circuit board assembly is arranged in the housing mechanism; The printed circuit board assembly includes: printed circuit board 1, printed circuit board 2, and a TDC card connector. The printed circuit board 1 and printed circuit board 2 are connected via an inter-board connector, and the TDC card connector is connected to the printed circuit board 2. The printed circuit board assembly is connected to the computer via a USB 3.0 interface, and the printed circuit board assembly is connected to the TDC card via the TDC card connector. The function of the printed circuit board 1 is to convert the 5V voltage input from the USB port into the power required by the chip inside the card reader; The function of the second printed board is to interconnect the USB2.0 and USB3.0 buses with the TDC data bus, and output a status indication so that the user can monitor the status of the card reader.

[0005] Preferably, the housing mechanism comprises: A housing, wherein an upper cover is connected to the housing, an opening is provided on one side of the housing, a baffle is hinged in the opening via a connecting post, and a spring is sleeved on the connecting post, and the spring is connected to the housing; A printed circuit board fixing frame connected to the inner wall of the shell; Two ears, the two ears are connected to the outer walls on opposite sides of the non-opening side of the shell, and the TDC card connector passes through the printed circuit board fixing frame; When the TDC card is inserted, the TDC card presses the baffle to open inward, and the PVC sheet and the upper cover guide the TDC card to connect with the TDC card connector of the printed circuit board assembly.

[0006] Preferably, it also includes: There are two groups of upper baffles and two groups of lower baffles. The upper part of the outer side wall of the shell where the ears are arranged is connected to the upper baffles, and the lower part of the outer side wall of the shell where the ears are arranged is connected to the lower baffles.

[0007] Preferably, it also includes: a PVC sheet, the PVC sheet being disposed in the housing and arranged horizontally and perpendicular to the opening side of the housing; Preferably, the shell has a length of 100 mm, a width of 92 mm, and a height of 36 mm, and the two ears are connected at both ends of the shell in the width direction; after the two ears are connected, the maximum distance between the two ears 4 along the width direction of the shell is 114 mm.

[0008] Preferably, the length of the printed circuit board 1 is 86 mm and the height is 26 mm.

[0009] Preferably, the length of the printed circuit board 1 is 83 mm and the height is 26 mm.

[0010] Preferably, it further comprises a plurality of fixing column groups, wherein the fixing column groups include two printed circuit board fixing columns, the two printed circuit board fixing columns are respectively arranged on the first printed circuit board and the second printed circuit board, and the corresponding two printed circuit board fixing columns are connected by a connecting piece.

[0011] Preferably, it also includes a temperature sensor, a temperature control module and a control module; Several temperature sensors are arranged in each predicted hot spot area on the printed circuit board surface; The control module includes: A first determining unit is configured to determine the location, range, and initial temperature value of the actual hotspot based on the temperature sensor detection value of the hotspot area by using a temperature clustering algorithm; A third determining unit: when an actual hotspot is detected, determining a compensation coefficient corresponding to the actual hotspot based on an equivalent temperature gradient between the actual hotspot and its surrounding area and historical temperature gradient fluctuation data between the actual hotspot and its surrounding area; A second determining unit: when an actual hotspot is detected, determining the heat dissipation power of the area surrounding the actual hotspot based on the detection value of the temperature sensor in the area surrounding the actual hotspot, the initial temperature value of the actual hotspot, and the compensation coefficient corresponding to the actual hotspot; A fourth determining unit: determining an initial predicted heat dissipation power of the local hotspot after a preset heat dissipation time based on the heat dissipation power of the surrounding area of ​​the actual hotspot; Effect coefficient acquisition unit: The effect coefficient of the actual hot spot is determined based on the average cooling rate within the preset heat dissipation time corresponding to the actual hot spot and the equivalent temperature difference change rate between the actual hot spot and its surrounding area within the preset heat dissipation time corresponding to the actual hot spot; A fifth determining unit is configured to determine a target heat dissipation power of the actual hotspot after the preset heat dissipation time based on the initial predicted heat dissipation power of the local hotspot after the preset heat dissipation time and the heat dissipation effect coefficient of the actual hotspot; The first control unit controls the temperature control unit to dissipate heat to the surrounding area of ​​the actual hotspot according to the heat dissipation power of the surrounding area of ​​the actual hotspot for a preset heat dissipation time, and then dissipate heat to the actual hotspot according to the target heat dissipation power of the actual hotspot after the preset heat dissipation time. Preferably, the compensation coefficient K corresponding to the current actual hotspot is calculated based on the following formula: ; in, is the equivalent temperature gradient between the current actual hot spot and its surrounding area; is the benchmark temperature gradient between the current actual hotspot and its surrounding area; is the standard deviation of the historical temperature gradient fluctuation between the current actual hotspot and its surrounding areas; is the standard deviation of the baseline temperature gradient fluctuation between the current actual hotspot and its surrounding areas; is the first weight; is the second weight.

[0012] Compared with the prior art, the present invention has the following beneficial effects: The present invention proposes to develop a dedicated data reading device that is easy to carry, has a simple interface, and is convenient to power, so as to achieve the purpose of reducing personnel allocation, improving work efficiency, and reducing work intensity, while ensuring data accuracy and equipment safety.

[0013] This project draws on the thinking behind mobile hard drive enclosures to convert data card access to a USB interface. The USB interface has the advantages of hot-swappable support, stable data transmission, fast transmission speed, and backward compatibility.

[0014] The printed circuit board assembly (PCB 1 13 and PCB 2 11) connects to the computer via a USB 3.0 interface, and the TDC card connector 14 connects to the TDC card. This allows for compatibility with various device links, breaking through the fixed transmission limitations of the traditional PCI bus. Maintenance personnel can quickly connect the computer and TDC card during missions, streamlining data transfer and improving data copying efficiency.

[0015] Printed circuit board 13 implements 5V to internal power conversion, while printed circuit board 21 completes USB bus and TDC bus interoperability, providing an integrated solution for both power and data exchange. This eliminates the need for additional power modules and adapters, reducing the need for portable accessories during missions and enabling plug-and-play data access for optimized operational convenience.

[0016] This card reader outputs status indicators via the printed circuit board 11, allowing maintenance personnel to monitor the card reader's operating status in real time (e.g., whether the connection is normal, whether data transmission is interrupted, etc.). If an abnormality occurs, timely intervention can be made to avoid data loss and misjudgment due to equipment failure, ensuring the accuracy of data processing and judgment.

[0017] The housing mechanism enables modular installation and removal of printed circuit board assemblies. In the event of a device failure, maintenance personnel can quickly replace the printed circuit board without scrapping the entire device, reducing maintenance costs and ensuring mission continuity. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the present invention or the prior art, a brief introduction is given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 It is a schematic diagram of the structural decomposition of the present invention; Figure 2 It is the overall dimension diagram of the present invention; Figure 3 Dimensional drawings of printed board 1 and printed board 2 of the present invention; Figure 4 This is a front view of a printed circuit board 1 of the present invention; Figure 5 This is a reverse side effect diagram of a printed circuit board 1 of the present invention; Figure 6 This is a front view of the printed circuit board 2 of the present invention; Figure 7 This is a reverse side effect diagram of the printed circuit board 2 of the present invention.

[0020] In the figure: 1. Upper cover; 2. Printed circuit board fixing frame; 3. Upper baffle; 4. Ear; 5. Connecting column; 6. Baffle; 7. Spring; 8. PVC sheet; 9. Shell; 91. Opening; 10. Lower baffle; 11. Printed circuit board 2; 12. Printed circuit board fixing column; 13. Printed circuit board 1; 14. TDC card connector. DETAILED DESCRIPTION

[0021] To make the objectives, technical solutions, and advantages of the present invention more clear, the technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0022] The present invention provides a TDC card multifunctional card reader, such as Figure 1-Figure 7 As shown, it includes a housing mechanism, in which a printed circuit board assembly is arranged; The printed circuit board assembly includes: printed circuit board 1 13, printed circuit board 2 11, and TDC card connector 14. Printed circuit board 13 and printed circuit board 2 11 are connected via an inter-board connector, and the TDC card connector 14 is connected to printed circuit board 2 11. The printed circuit board assembly is connected to a computer via a USB 3.0 interface, and the printed circuit board assembly is connected to a TDC card via the TDC card connector 14. The reverse operation is performed when the TDC card is removed. The function of the printed circuit board 13 is to convert the 5V voltage input from the USB port into the power required by the chip inside the card reader; The function of the printed circuit board 2 11 is to interconnect the USB2.0 and USB3.0 buses with the TDC data bus, and output a status indication so that the user can monitor the status of the card reader and troubleshoot it.

[0023] The housing structure includes: A housing 9 is connected to an upper cover 1. An opening 91 is provided on one side of the housing 9. A baffle 6 is hinged in the opening 91 via a connecting post 5. A spring 7 is sleeved on the connecting post 5 and connected to the housing 9. The printed circuit board fixing frame 2 is connected to the inner wall of the housing 9; Two ears 4, the two ears 4 are connected to the outer walls of the shell 9 on opposite sides of the non-opening side, and the TDC card connector 14 passes through the printed circuit board fixing frame 2; Two sets of upper baffles 3 and two sets of lower baffles 10, the upper part of the outer wall of the shell 9 where the ears 4 are set is connected to the upper baffles 3, and the lower part of the outer wall of the shell 9 where the ears 4 are set is connected to the lower baffles 10; A PVC sheet 8 is disposed in the housing 9 and arranged horizontally and perpendicular to the opening side of the housing 9; When the TDC card is inserted, the TDC card presses the baffle 6 to open inward, and the PVC sheet 8 and the upper cover 1 guide the TDC card to connect with the TDC card connector 14 of the printed circuit board assembly.

[0024] The upper baffle 3 is fixedly connected to the inner side of the housing 9 by screws.

[0025] The shell 9 has a length of 100 mm, a width of 92 mm, and a height of 36 mm, and the two ears 4 are connected at both ends of the shell 9 in the width direction; after the two ears 4 are connected, the maximum distance between the two ears 4 along the width direction of the shell 9 is 114 mm.

[0026] Among them, the length of the printed circuit board 13 is 86 mm and the height is 26 mm; the length of the printed circuit board 13 is 83 mm and the height is 26 mm.

[0027] The object of the present invention is to overcome the shortcomings of the prior art and provide a TDC card multifunctional reader which has a simple structure, is easy to carry, has a simple interface, is convenient to power, and supports hot plugging.

[0028] like Figure 2 The figure shows the dimensions of the device.

[0029] like Figure 3 As shown, the dimensions of printed board 1 13 and printed board 2 11 are indicated.

[0030] like Figure 4 As shown in the figure, the effect diagram of printed board 13 is shown. Printed board 13 is the system power supply circuit. An isolated power supply chip is selected as the secondary power supply to prevent damage to the TDC card and the host computer USB interface due to factors such as short circuit and misconnection.

[0031] like Figure 5 As shown in the effect diagram of the printed circuit board 2 11, the printed circuit board 2 11 converts data between the USB bus and the TDC card data bus in real time through the main control chip and the program, and the program is stored in the external flash chip.

[0032] The system also includes several fixing column groups, each comprising two printed circuit board fixing columns 12, which are disposed on printed circuit board 1 13 and printed circuit board 2 11, respectively. The two corresponding printed circuit board fixing columns 12 are connected by a connector. By disposing printed circuit board fixing columns 12 on each of the two printed circuit boards (printed circuit board 1 13 and printed circuit board 2 11) and then connecting them with connectors, the two printed circuit boards can be precisely aligned and positioned, simplifying the assembly process, improving assembly efficiency and accuracy, and enabling rapid and stable assembly of the printed circuit boards within the housing 9. This provides a rigid connection and support between the printed circuit boards, enhancing overall structural strength. When the equipment is subjected to vibration or impact, it reduces relative displacement and shaking of the printed circuit boards, protecting components and solder joints on the boards, and improving equipment reliability and service life.

[0033] The beneficial effects of the above scheme are: The present invention proposes to develop a dedicated data reading device that is easy to carry, has a simple interface, and is convenient to power, so as to achieve the purpose of reducing personnel allocation, improving work efficiency, and reducing work intensity, while ensuring data accuracy and equipment safety.

[0034] This project draws on the thinking behind mobile hard drive enclosures to convert data card access to a USB interface. The USB interface has the advantages of hot-swappable support, stable data transmission, fast transmission speed, and backward compatibility.

[0035] The printed circuit board assembly (PCB 1 13 and PCB 2 11) connects to the computer via a USB 3.0 interface, and the TDC card connector 14 connects to the TDC card. This allows for compatibility with various device links, breaking through the fixed transmission limitations of the traditional PCI bus. Maintenance personnel can quickly connect the computer and TDC card during missions, streamlining data transfer and improving data copying efficiency.

[0036] Printed circuit board 13 implements 5V to internal power conversion, while printed circuit board 21 completes USB bus and TDC bus interoperability, providing an integrated solution for both power and data exchange. This eliminates the need for additional power modules and adapters, reducing the need for portable accessories during missions and enabling plug-and-play data access for optimized operational convenience.

[0037] This card reader outputs status indicators via the printed circuit board 11, allowing maintenance personnel to monitor the card reader's operating status in real time (e.g., whether the connection is normal, whether data transmission is interrupted, etc.). If an abnormality occurs, timely intervention can be made to avoid data loss and misjudgment due to equipment failure, ensuring the accuracy of data processing and judgment.

[0038] The housing mechanism enables modular installation and removal of printed circuit board assemblies. In the event of a device failure, maintenance personnel can quickly replace the printed circuit board without scrapping the entire device, reducing maintenance costs and ensuring mission continuity.

[0039] Example 2, based on Example 1, further includes a temperature sensor, a temperature control module and a control module; Several temperature sensors are arranged in each predicted hot spot area on the printed circuit board surface; The control module includes: A first determining unit is configured to determine the location, range, and initial temperature value of the actual hotspot based on the temperature sensor detection value of the hotspot area by using a temperature clustering algorithm; A third determining unit: when an actual hotspot is detected, determining a compensation coefficient corresponding to the actual hotspot based on an equivalent temperature gradient between the actual hotspot and its surrounding area and historical temperature gradient fluctuation data between the actual hotspot and its surrounding area; Second determination unit: When an actual hotspot is detected, determining the heat dissipation power of the area surrounding the actual hotspot based on the detection value of the temperature sensor in the area surrounding the actual hotspot, the initial temperature value of the actual hotspot, and the compensation coefficient corresponding to the actual hotspot; determining the initial heat dissipation power of the area surrounding the actual hotspot based on the detection value of the temperature sensor in the area surrounding the actual hotspot, the initial temperature value of the actual hotspot, and a heat conduction model; heat dissipation power of the area surrounding the actual hotspot = initial heat dissipation power of the area surrounding the actual hotspot × (1 + compensation coefficient corresponding to the actual hotspot); The fourth determining unit is configured to determine the initial predicted heat dissipation power of the local hotspot after a preset heat dissipation time based on the heat dissipation power of the surrounding area of ​​the actual hotspot; the determination is based on a heat conduction model; Effect coefficient acquisition unit: The effect coefficient of the actual hot spot is determined based on the average cooling rate within the preset heat dissipation time corresponding to the actual hot spot and the equivalent temperature difference change rate between the actual hot spot and its surrounding area within the preset heat dissipation time corresponding to the actual hot spot; A fifth determining unit is configured to determine a target heat dissipation power of the actual hotspot after the preset heat dissipation time based on the initial predicted heat dissipation power of the local hotspot after the preset heat dissipation time and the heat dissipation effect coefficient of the actual hotspot; The first control unit controls the temperature control unit to dissipate heat to the surrounding area of ​​the actual hotspot according to the heat dissipation power of the surrounding area of ​​the actual hotspot for a preset heat dissipation time, and then dissipate heat to the actual hotspot according to the target heat dissipation power of the actual hotspot after the preset heat dissipation time. The compensation coefficient K corresponding to the current actual hotspot is calculated based on the following formula:

[0040] in, The equivalent temperature gradient between the current actual hotspot and its surrounding area (the temperature sensor detection value corresponding to the current actual hotspot minus the average temperature detection value of the current actual hotspot and its surrounding area); is the benchmark temperature gradient between the current actual hotspot and its surrounding area; is the standard deviation of the historical temperature gradient fluctuation between the current actual hotspot and its surrounding areas; is the standard deviation of the baseline temperature gradient fluctuation between the current actual hotspot and its surrounding areas; is the first compensation sensitivity coefficient (the value is greater than 0 and less than 1); is the second compensation sensitivity coefficient (the value is greater than 0 and less than 1).

[0041]

[0042] W is the effect coefficient of the actual hotspot; V is the average cooling rate during the preset heat dissipation duration corresponding to the actual hotspot (in °C / s); G is the rate of change of the equivalent temperature difference between the actual hotspot and its surrounding area during the preset heat dissipation duration (in °C / s, specifically: |Equivalent temperature difference between the actual hotspot and its surrounding area at the beginning of the preset heat dissipation duration corresponding to the actual hotspot - Equivalent temperature difference between the actual hotspot and its surrounding area at the end of the preset heat dissipation duration corresponding to the actual hotspot| ÷ Preset heat dissipation duration); is the volatility penalty coefficient (the value is greater than 0 and less than 0.5); The standard deviation of the cooling rate within the preset cooling time corresponding to the actual hotspot (in °C / s); is the reference value corresponding to G; is the reference value corresponding to V; is the reference value corresponding to E; is the reference correction coefficient (the value is greater than 0 and less than 0.3); The first determination unit (hotspot identification) is implemented by collecting temperature sensor data from hotspot areas (e.g., a 3×3 sensor array). The K-means temperature clustering algorithm is used (with the number of clusters set to 2: hotspot / non-hotspot). The cluster center corresponds to the "actual hotspot location," the cluster radius corresponds to the "range," and the center temperature corresponds to the "initial temperature value." Parameter explanation: Cluster radius threshold: For example, if set to 3°C, temperatures >3°C are considered distinct clusters. The algorithm iteration count is set to 10, balancing computational speed and accuracy.

[0043] The standard deviation of the historical temperature gradient fluctuations of the current actual hotspot and its surrounding areas is collected from the temperature gradient data of the past M cycles and the standard deviation is calculated; Benchmark parameter acquisition: The equipment is tested and determined under standard operating conditions (25°C room temperature, 50% load) before leaving the factory; The beneficial effects of the above technical solution are: In this solution, the first determination unit uses a 3×3 temperature sensor array to collect temperature data from hotspot areas and processes the data using the K-means temperature clustering algorithm (with a cluster count of 2, representing hotspots and non-hotspots). This method accurately distinguishes hotspots from non-hotspots. Compared to traditional single-sensor detection or simple threshold determination methods, the hotspot identification error is significantly reduced from the typical ±5mm to ±2mm, and the hotspot identification misjudgment rate can be controlled within 10%. This improved accuracy effectively avoids the misallocation of cooling resources caused by misidentification of hotspots, ensuring that subsequent cooling control measures are precisely targeted at the actual hotspot areas, laying the foundation for efficient cooling.

[0044] The third determination unit introduces a compensation coefficient, K, which combines the equivalent temperature gradient between the actual hotspot and its surrounding area (reflecting the real-time driving force of heat flow) and historical temperature gradient fluctuation data (reflecting the risk of heat dissipation stability). In actual operation, traditional solutions often use fixed power or simply calculate heat dissipation power based on temperature differences. When operating conditions (such as load and ambient temperature) fluctuate, the power inaccuracy rate can be as high as 30%-50%. This solution, however, uses the compensation coefficient K to dynamically correct the heat dissipation power, reducing the power calculation error to within 8%. This allows the heat dissipation power to adapt to complex and changing operating conditions in real time, ensuring the stability of the heat dissipation effect.

[0045] The constructed effectiveness coefficient W relates the average cooling rate of the actual hotspot over a preset cooling duration, the rate of change of the equivalent temperature difference between the actual hotspot and its surrounding area, and also introduces a fluctuation penalty term, upgrading the single-dimensional temperature difference evaluation to a three-dimensional evaluation system encompassing cooling speed, heat transfer trend, and cooling stability. Field verification has shown that compared to traditional methods that evaluate cooling effectiveness based solely on temperature difference, its match with actual cooling quality has increased to 90%, providing a more comprehensive and accurate quantification of cooling effectiveness, providing a reliable basis for subsequent cooling strategy adjustments.

[0046] The first control unit adopts a segmented power control strategy combined with a compensation coefficient correction mechanism. In the first half of the preset heat dissipation time, the temperature control unit is controlled to output a relatively high power based on the heat dissipation power of the area surrounding the actual hot spot to enhance the initial heat dissipation; in the second half, the output power is adjusted based on the target heat dissipation power of the actual hot spot after the preset heat dissipation time to maintain heat dissipation stability. After implementing this strategy, the fluctuation of the hot spot cooling rate is compressed from ±0.3℃ / s of the traditional solution to ±0.1℃ / s, and the average cooling rate is increased from about 0.3℃ / s to 0.5℃ / s. The total cooling range within the preset heat dissipation time is increased by about 67%. At the same time, segmented control avoids power mutations, reduces the thermal stress shock caused by drastic temperature fluctuations on components, and protects components.

[0047] The second determination unit in the solution first accurately calculates and regulates the heat dissipation power of the surrounding areas of the actual hotspot. By dissipating heat in the surrounding areas in advance, a reasonable temperature gradient field can be effectively constructed. For example, within the preset heat dissipation time, the temperature of the surrounding areas is first allowed to drop as expected, which can form a "temperature difference driving force" from the hotspot to the surrounding areas. When the hotspot is directly dissipated later, the heat flow can be more smoothly transferred from the hotspot to the surrounding areas, thereby improving the heat dissipation efficiency of the hotspot. After testing, after the surrounding areas are heat-dissipated in advance according to the heat dissipation power of the surrounding areas, the cooling rate in the subsequent hotspot heat dissipation stage can be increased by 10%-15% on the original basis, making the entire heat dissipation process more efficient and coordinated.

[0048] If attention is not paid to heat dissipation in the surrounding areas, the heat generated by the hotspot will easily accumulate in the surrounding areas, resulting in a smaller temperature difference between the hotspot and the surrounding area, weakening the natural heat dissipation driving force. Even if the hotspot is directly cooled later, the effect will be affected. This solution uses segmented control to first preset the heat dissipation time for the surrounding area, which can promptly dissipate the heat that may accumulate in the surrounding area and maintain a reasonable temperature gradient between the hotspot and the surrounding area. In actual operation, the probability of "secondary heating" caused by heat accumulation in the surrounding area can be reduced from 20%-30% in traditional solutions without pre-cooling of the surrounding area to less than 5%, ensuring that the hotspot heat dissipation is always carried out in a favorable temperature environment.

[0049] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. TDC card multi-function reader, characterized by: It includes a housing structure, wherein a printed circuit board assembly is arranged in the housing structure; The printed circuit board assembly comprises: printed circuit board 1 (13), printed circuit board 2 (11), and a TDC card connector (14); the printed circuit board 1 (13) is connected to the printed circuit board 2 (11) via an inter-board connector, and the TDC card connector (14) is connected to the printed circuit board 2 (11); the printed circuit board assembly is connected to a computer via a USB 3.0 interface, and the printed circuit board assembly is connected to a TDC card via a TDC card connector (14); The function of the printed circuit board 1 (13) is to convert the 5V voltage input from the USB port into the power required by the chip inside the card reader; The function of the printed circuit board 2 (11) is to interconnect the USB2.0 and USB3.0 buses with the TDC data bus, and output a status indication so that the user can monitor the status of the card reader.

2. The TDC card multi-function reader according to claim 1, characterized in that: The housing structure includes: A housing (9), wherein an upper cover (1) is connected to the housing (9), an opening (91) is provided on one side of the housing (9), a baffle (6) is hinged in the opening (91) via a connecting column (5), and a spring (7) is sleeved on the connecting column (5), and the spring (7) is connected to the housing (9); A printed circuit board fixing frame (2), the printed circuit board fixing frame (2) is connected to the inner wall of the housing (9); Two ears (4), the two ears (4) are connected to the outer walls of the shell (9) on opposite sides of the non-opening side, and the TDC card connector (14) passes through the printed circuit board fixing frame (2); When the TDC card is inserted, the TDC card presses the baffle (6) to open inward, and the PVC sheet (8) and the upper cover (1) guide the TDC card to connect with the TDC card connector (14) of the printed circuit board assembly.

3. The TDC card multifunctional reader according to claim 2, characterized in that: Also includes: Two groups of upper baffles (3) and two groups of lower baffles (10) are provided. The upper portion of the outer wall of the shell (9) where the ear (4) is provided is connected to the upper baffles (3), and the lower portion of the outer wall of the shell (9) where the ear (4) is provided is connected to the lower baffles (10).

4. The TDC card multifunctional reader according to claim 2, characterized in that: Also includes: A PVC sheet (8) is provided in the housing (9), and the PVC sheet (8) is arranged horizontally and perpendicular to the opening side of the housing (9).

5. The TDC card multi-function reader according to claim 3, characterized in that: The shell (9) has a length of 100 mm, a width of 92 mm, and a height of 36 mm. The two ears (4) are connected to both ends of the shell (9) in the width direction. After the two ears (4) are connected, the maximum distance between the two ears (4) along the width direction of the shell (9) is 114 mm.

6. The TDC card multifunctional reader according to claim 1, characterized in that: The printed circuit board 1 (13) has a length of 86 mm and a height of 26 mm.

7. The TDC card multi-function reader according to claim 1, characterized in that: The printed circuit board 1 (13) has a length of 83 mm and a height of 26 mm.

8. The TDC card multi-function reader according to claim 1, characterized in that: The invention also includes a plurality of fixing column groups, wherein the fixing column groups include two printed circuit board fixing columns (12). The two printed circuit board fixing columns (12) are respectively arranged on printed circuit board 1 (13) and printed circuit board 2 (11), and the corresponding two printed circuit board fixing columns (12) are connected by a connecting piece.

9. The TDC card multi-function reader according to claim 1, characterized in that: It also includes a temperature sensor, a temperature control module and a control module; Several temperature sensors are arranged in each predicted hot spot area on the printed circuit board surface; The control module includes: A first determining unit is configured to determine the location, range, and initial temperature value of the actual hotspot based on the temperature sensor detection value of the hotspot area by using a temperature clustering algorithm; A third determining unit: when an actual hotspot is detected, determining a compensation coefficient corresponding to the actual hotspot based on an equivalent temperature gradient between the actual hotspot and its surrounding area and historical temperature gradient fluctuation data between the actual hotspot and its surrounding area; A second determining unit: when an actual hotspot is detected, determining the heat dissipation power of the area surrounding the actual hotspot based on the detection value of the temperature sensor in the area surrounding the actual hotspot, the initial temperature value of the actual hotspot, and the compensation coefficient corresponding to the actual hotspot; A fourth determining unit: determining an initial predicted heat dissipation power of the local hotspot after a preset heat dissipation time based on the heat dissipation power of the surrounding area of ​​the actual hotspot; Effect coefficient acquisition unit: The effect coefficient of the actual hot spot is determined based on the average cooling rate within the preset heat dissipation time corresponding to the actual hot spot and the equivalent temperature difference change rate between the actual hot spot and its surrounding area within the preset heat dissipation time corresponding to the actual hot spot; A fifth determining unit is configured to determine a target heat dissipation power of the actual hotspot after the preset heat dissipation time based on the initial predicted heat dissipation power of the local hotspot after the preset heat dissipation time and the heat dissipation effect coefficient of the actual hotspot; The first control unit controls the temperature control unit to dissipate heat to the surrounding area of ​​the actual hotspot according to the heat dissipation power of the surrounding area of ​​the actual hotspot for a preset heat dissipation time, and then dissipate heat to the actual hotspot according to the target heat dissipation power of the actual hotspot after the preset heat dissipation time.

10. The TDC card multi-function reader according to claim 9, characterized in that: The compensation coefficient K corresponding to the current actual hotspot is calculated based on the following formula: ； in, is the equivalent temperature gradient between the current actual hot spot and its surrounding area; is the benchmark temperature gradient between the current actual hotspot and its surrounding area; is the standard deviation of the historical temperature gradient fluctuation between the current actual hotspot and its surrounding areas; is the standard deviation of the baseline temperature gradient fluctuation between the current actual hotspot and its surrounding areas; is the first weight; is the second weight.

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