TDC Card Multifunction Reader

Abstract

This invention provides a TDC card multi-function card reader, relating to the field of card readers. It includes a housing mechanism with a printed circuit board assembly inside. The printed circuit board assembly includes: a first printed circuit board, a second printed circuit board, and a TDC card connector. The first and second printed circuit boards are connected via an inter-board connector, and the TDC card connector is connected to the second printed circuit board. The printed circuit board assembly is connected to a computer via a USB 3.0 interface and to a TDC card via the TDC card connector. The function of the first printed circuit board is to convert the 5V voltage input from the USB port into the power required by the internal chip of the card reader. The function of the second printed circuit board is to interconnect the USB 2.0 and USB 3.0 buses with the TDC data bus, and simultaneously output status indicators to allow the user to monitor the status of the card reader. This invention proposes a dedicated data reading device that is portable, has a simple interface, and is conveniently powered, thereby reducing personnel requirements, improving work efficiency, and alleviating workload, while ensuring data accuracy and equipment security.

Description

Technical Field

[0001] This invention relates to the field of card readers, and more particularly to a TDC card multifunction card reader. Background Technology

[0002] Currently, the data transfer cards used by aircraft maintenance personnel are mostly non-portable fixed devices, such as those that transmit data via the PCI bus. These devices are extremely inconvenient for field missions, making data access before and after missions extremely difficult and significantly impacting the effectiveness of data copying, processing, and analysis. Summary of the Invention

[0003] This invention provides a TDC card multifunction reader to solve the technical problems mentioned in the background section.

[0004] To solve the above-mentioned technical problems, the present invention discloses a TDC card multi-function reader, including a housing mechanism, wherein a printed circuit board assembly is disposed within the housing mechanism;

[0005] The printed circuit board assembly includes: a first printed circuit board, a second printed circuit board, and a TDC card connector. The first printed circuit board and the second printed circuit board are connected via an inter-board connector, and the TDC card connector is connected to the second printed circuit board. 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.

[0006] The function of the printed circuit board is to convert the 5V voltage input from the USB port into the power required by the internal chip of the card reader.

[0007] The function of the second printed circuit board is to interconnect the USB2.0 and USB3.0 buses with the TDC data bus, and at the same time output status indicators so that users can monitor the status of the card reader.

[0008] Preferably, the housing mechanism includes:

[0009] A housing with a top cover plate connected to it, an opening on one side of the housing, a baffle hinged to the opening via a connecting post, and a spring sleeved on the connecting post, the spring being connected to the housing;

[0010] Printed circuit board holder, the printed circuit board holder is connected to the inner wall of the housing;

[0011] Two ears, the two ears are connected to the opposite outer walls on the non-open side of the housing, and the TDC card connector passes through the printed circuit board mounting bracket;

[0012] When the TDC card is inserted, the TDC card presses the baffle inward, and the PVC sheet and top cover guide the TDC card to connect with the TDC card connector of the printed circuit board assembly.

[0013] Preferred options also include:

[0014] Two sets of upper baffles and two sets of lower baffles are provided. The upper baffles are connected to the upper part of the outer side wall of the ear shell, and the lower baffles are connected to the lower part of the outer side wall of the ear shell.

[0015] Preferred options also include:

[0016] A PVC sheet is disposed inside the housing, and the PVC sheet is arranged horizontally and perpendicular to the opening side of the housing;

[0017] Preferably, the shell has a length of 100mm, a width of 92mm, and a height of 36mm, with two ears connected to both ends in the width direction of the shell; after the two ears are connected, the maximum distance between the two ears 4 along the width direction of the shell is 114mm.

[0018] Preferably, the first printed circuit board has a length of 86mm and a height of 26mm.

[0019] Preferably, the first printed circuit board has a length of 83mm and a height of 26mm.

[0020] Preferably, the device further includes several fixing post groups, each group comprising two printed circuit board fixing posts. The two printed circuit board fixing posts are respectively disposed on printed circuit board one and printed circuit board two, and the corresponding two printed circuit board fixing posts are connected by connectors.

[0021] Preferably, it also includes a temperature sensor, a temperature regulation module, and a control module;

[0022] Several temperature sensors are arranged in each predicted hot spot area on the surface of the printed circuit board;

[0023] The control module includes:

[0024] First determining unit: used to determine the location, range and initial temperature value of the actual hot spot based on the temperature sensor detection value of the hot spot area and through a temperature clustering algorithm;

[0025] The third determining unit: When an actual hot spot is detected, the compensation coefficient corresponding to the actual hot spot is determined based on the equivalent temperature gradient between the actual hot spot and its surrounding area and the historical temperature gradient fluctuation data between the actual hot spot and its surrounding area.

[0026] The second determining unit: When an actual hot spot is detected, the heat dissipation power of the area surrounding the actual hot spot is determined based on the temperature sensor detection value of the area surrounding the actual hot spot, the initial temperature value of the actual hot spot, and the compensation coefficient corresponding to the actual hot spot.

[0027] The fourth determining unit: Based on the heat dissipation power of the surrounding area of ​​the actual hot spot, determine the initial predicted heat dissipation power of the local hot spot after the preset heat dissipation time;

[0028] 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 rate of change of the equivalent temperature difference between the actual hot spot and its surrounding area within the preset heat dissipation time corresponding to the actual hot spot.

[0029] The fifth determining unit is used to determine the target heat dissipation power of the actual hot spot after the preset heat dissipation time based on the initial predicted heat dissipation power of the local hot spot after the preset heat dissipation time and the heat dissipation effect coefficient of the actual hot spot.

[0030] First control unit: The temperature control unit controls the heat dissipation of the surrounding area of ​​the actual hot spot according to the heat dissipation power of the surrounding area of ​​the actual hot spot, presets the heat dissipation time, and then cools the actual hot spot according to the target heat dissipation power of the actual hot spot after the preset heat dissipation time.

[0031] Preferably, the compensation coefficient K corresponding to the current actual hotspot is calculated based on the following formula:

[0032] ;

[0033] in, This represents the equivalent temperature gradient between the current actual hotspot and its surrounding area. This represents the current actual hotspot and the benchmark temperature gradient between it and its surrounding area. The standard deviation of the historical temperature gradient fluctuation between the current hotspot and its surrounding area; The standard deviation of the current actual hotspot and the benchmark temperature gradient fluctuation of its surrounding area; It is the first weight; It is the second weight.

[0034] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0035] This invention proposes the development of a dedicated data reading device that is portable, has a simple interface, and is easy to power, in order to reduce personnel requirements, improve work efficiency, reduce workload, and ensure data accuracy and equipment security.

[0036] This project borrows the concept from external hard drive enclosures, converting data card reading to a USB interface. USB interfaces offer advantages such as hot-swapping support, stable data transfer, high transfer speeds, and backward compatibility.

[0037] The printed circuit board assembly (PCB 13 and PCB 21) connects to a computer via a USB 3.0 interface and to a TDC card via a TDC card connector 14, ensuring compatibility with different device links and overcoming the "fixed transmission limitation" of the traditional PCI bus. When performing tasks, maintenance personnel can quickly connect to the computer and TDC card, simplifying the data transmission process and improving data copying efficiency.

[0038] Printed board 13 converts 5V to internal power, while printed board 21 enables interconnection between the USB bus and the TDC bus, providing an integrated solution for power supply and data interaction. No additional power supply modules or adapters are required, reducing the accessories needed for field missions and enabling plug-and-play data access, thus optimizing operational convenience.

[0039] This card reader outputs status indicators via PCB 2.11, allowing maintenance personnel to monitor its operational status in real time (e.g., connection status, data transmission interruption). In case of any anomalies, timely intervention is possible to prevent data loss or misjudgment due to equipment malfunction, ensuring the accuracy of data processing and analysis.

[0040] The housing mechanism enables modular installation and removal of the printed circuit board (PCB) assembly. In case of equipment failure, maintenance personnel can quickly replace the PCB without scrapping the entire equipment, reducing maintenance costs and ensuring mission continuity. Attached Figure Description

[0041] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0042] Figure 1 This is a structural exploded view of the present invention;

[0043] Figure 2 This is an overall dimensional drawing of the present invention;

[0044] Figure 3 These are dimensional drawings of printed circuit board one and printed circuit board two of the present invention;

[0045] Figure 4 This is a front view of the printed circuit board of the present invention;

[0046] Figure 5 This is a reverse side view of the printed circuit board of the present invention;

[0047] Figure 6 This is a front view of the second printed circuit board of the present invention;

[0048] Figure 7 This is a reverse side view of the printed circuit board 2 of the present invention.

[0049] In the diagram: 1. Top cover plate; 2. Printed circuit board mounting bracket; 3. Upper baffle; 4. Ear; 5. Connecting post; 6. Baffle; 7. Spring; 8. PVC sheet; 9. Housing; 91. Opening; 10. Lower baffle; 11. Printed circuit board two; 12. Printed circuit board mounting post; 13. Printed circuit board one; 14. TDC card connector. Detailed Implementation

[0050] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0051] This invention provides a TDC card multi-function reader, such as... Figures 1-7 As shown, it includes a housing mechanism, within which a printed circuit board assembly is disposed;

[0052] The printed circuit board assembly includes: a first printed circuit board 13, a second printed circuit board 11, and a TDC card connector 14. The first printed circuit board 13 and the second printed circuit board 11 are connected through an inter-board connector, and the TDC card connector 14 is connected to the second printed circuit board 11. The printed circuit board assembly is connected to a computer through a USB 3.0 interface, and the printed circuit board assembly is connected to a TDC card through the TDC card connector 14. The operation is reversed when the TDC card is removed.

[0053] 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 internal chip of the card reader.

[0054] The function of the printed circuit board 11 is to interconnect the USB 2.0 and USB 3.0 buses with the TDC data bus, and at the same time output status indicators so that users can monitor the status of the card reader and facilitate troubleshooting.

[0055] The housing mechanism includes:

[0056] The housing 9 has an upper cover plate 1 connected to it. An opening 91 is provided on one side of the housing 9. A baffle 6 is hinged in the opening 91 through a connecting post 5. A spring 7 is sleeved on the connecting post 5 and the spring 7 is connected to the housing 9.

[0057] Printed board mounting bracket 2 is connected to the inner wall of housing 9;

[0058] Two ears 4 are connected to the opposite outer walls of the non-open side of the housing 9, and the TDC card connector 14 passes through the printed circuit board holder 2.

[0059] Two sets of upper baffles 3 and two sets of lower baffles 10 are provided. The upper baffles 3 are connected to the upper part of the outer side wall of the housing 9 where the ear is located, and the lower baffles 10 are connected to the lower part of the outer side wall of the housing 9 where the ear is located.

[0060] PVC sheet 8 is disposed inside the housing 9, and the PVC sheet 8 is arranged horizontally and perpendicular to the opening side of the housing 9;

[0061] When the TDC card is inserted, the TDC card pressure baffle 6 opens inward, and the PVC sheet 8 and the top cover 1 guide the TDC card to connect with the TDC card connector 14 of the printed circuit board assembly.

[0062] The upper baffle 3 is fixedly connected to the inside of the housing 9 by screws.

[0063] The shell 9 has a length of 100mm, a width of 92mm, and a height of 36mm. 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 114mm.

[0064] The printed circuit board 13 has a length of 86mm and a height of 26mm; the printed circuit board 13 has a length of 83mm and a height of 26mm.

[0065] The purpose of this invention is to overcome the shortcomings of the prior art and provide a TDC card multi-function reader that is simple in structure, easy to carry, has a simple interface, is convenient to power supply, and supports hot-swapping.

[0066] like Figure 2 As shown, the external dimensions of the equipment are indicated.

[0067] like Figure 3 As shown, the external dimensions of printed circuit board 13 and printed circuit board 21 are indicated.

[0068] like Figure 4 The diagram shown is an effect of printed circuit board 13. Printed circuit board 13 is the system power supply circuit. An isolation power chip is selected as the secondary power supply to prevent damage to the TDC card and the host computer USB interface due to short circuits, misconnections, or other factors.

[0069] like Figure 5 As shown in the diagram, the printed circuit board 211 converts data between the USB bus and the TDC card data bus in real time through the main control chip and the program. The program is stored in the external flash chip.

[0070] It also includes several fixing post groups, each comprising two printed circuit board fixing posts 12. The two fixing posts 12 are respectively mounted on printed circuit board one 13 and printed circuit board two 11, and are connected by connectors. By setting the fixing posts 12 on the two printed circuit boards (printed circuit board one 13 and printed circuit board two 11) and 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 allowing the printed circuit boards to be quickly and stably assembled within the housing 9. It provides rigid connection and support between the printed circuit boards, enhancing the overall structural strength. When the equipment is subjected to vibration or impact, it reduces the relative displacement and shaking of the printed circuit boards, protecting components and solder joints on the boards, and improving the reliability and service life of the equipment.

[0071] The beneficial effects of the above scheme are as follows:

[0072] This invention proposes the development of a dedicated data reading device that is portable, has a simple interface, and is easy to power, in order to reduce personnel requirements, improve work efficiency, reduce workload, and ensure data accuracy and equipment security.

[0073] This project borrows the concept from external hard drive enclosures, converting data card reading to a USB interface. USB interfaces offer advantages such as hot-swapping support, stable data transfer, high transfer speeds, and backward compatibility.

[0074] The printed circuit board assembly (PCB 13 and PCB 21) connects to a computer via a USB 3.0 interface and to a TDC card via a TDC card connector 14, ensuring compatibility with different device links and overcoming the "fixed transmission limitation" of the traditional PCI bus. When performing tasks, maintenance personnel can quickly connect to the computer and TDC card, simplifying the data transmission process and improving data copying efficiency.

[0075] Printed board 13 converts 5V to internal power, while printed board 21 enables interconnection between the USB bus and the TDC bus, providing an integrated solution for power supply and data interaction. No additional power supply modules or adapters are required, reducing the accessories needed for field missions and enabling plug-and-play data access, thus optimizing operational convenience.

[0076] This card reader outputs status indicators via PCB 2.11, allowing maintenance personnel to monitor its operational status in real time (e.g., connection status, data transmission interruption). In case of any anomalies, timely intervention is possible to prevent data loss or misjudgment due to equipment malfunction, ensuring the accuracy of data processing and analysis.

[0077] The housing mechanism enables modular installation and removal of the printed circuit board (PCB) assembly. In case of equipment failure, maintenance personnel can quickly replace the PCB without scrapping the entire equipment, reducing maintenance costs and ensuring mission continuity.

[0078] Example 2, based on Example 1, further includes a temperature sensor, a temperature regulation module, and a control module;

[0079] Several temperature sensors are arranged in each predicted hot spot area on the surface of the printed circuit board;

[0080] The control module includes:

[0081] First determining unit: used to determine the location, range and initial temperature value of the actual hot spot based on the temperature sensor detection value of the hot spot area and through a temperature clustering algorithm;

[0082] The third determining unit: When an actual hot spot is detected, the compensation coefficient corresponding to the actual hot spot is determined based on the equivalent temperature gradient between the actual hot spot and its surrounding area and the historical temperature gradient fluctuation data between the actual hot spot and its surrounding area.

[0083] The second determining unit: When an actual hot spot is detected, the heat dissipation power of the area surrounding the actual hot spot is determined based on the temperature sensor detection value of the area surrounding the actual hot spot, the initial temperature value of the actual hot spot, and the compensation coefficient corresponding to the actual hot spot; the initial heat dissipation power of the area surrounding the actual hot spot is determined based on the temperature sensor detection value of the area surrounding the actual hot spot, the initial temperature value of the actual hot spot, and the heat conduction model; the heat dissipation power of the area surrounding the actual hot spot = the initial heat dissipation power of the area surrounding the actual hot spot × (1 + the compensation coefficient corresponding to the actual hot spot).

[0084] The fourth determining unit: Based on the heat dissipation power of the surrounding area of ​​the actual hot spot, the initial predicted heat dissipation power of the local hot spot is determined after the preset heat dissipation time; determined based on the heat conduction model;

[0085] 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 rate of change of the equivalent temperature difference between the actual hot spot and its surrounding area within the preset heat dissipation time corresponding to the actual hot spot.

[0086] The fifth determining unit is used to determine the target heat dissipation power of the actual hot spot after the preset heat dissipation time based on the initial predicted heat dissipation power of the local hot spot after the preset heat dissipation time and the heat dissipation effect coefficient of the actual hot spot.

[0087] First control unit: The temperature control unit controls the heat dissipation of the surrounding area of ​​the actual hot spot according to the heat dissipation power of the surrounding area of ​​the actual hot spot, presets the heat dissipation time, and then cools the actual hot spot according to the target heat dissipation power of the actual hot spot after the preset heat dissipation time.

[0088] The compensation coefficient K corresponding to the current actual hotspot is calculated based on the following formula:

[0089]

[0090] in, The equivalent temperature gradient between the current actual hot spot and its surrounding area (the temperature sensor detection value corresponding to the current actual hot spot - the average temperature detection value between the current actual hot spot and its surrounding area). This represents the current actual hotspot and the benchmark temperature gradient between it and its surrounding area. The standard deviation of the historical temperature gradient fluctuation between the current hotspot and its surrounding area; The standard deviation of the current actual hotspot and the benchmark temperature gradient fluctuation of its surrounding area; The first compensation sensitivity coefficient (with a value greater than 0 and less than 1); This is the second compensation sensitivity coefficient (with a value greater than 0 and less than 1).

[0091]

[0092] W is the effect coefficient of the actual hot spot; V is the average cooling rate within the preset heat dissipation time corresponding to the actual hot spot (in ℃ / s); G is the rate of change of the equivalent temperature difference between the actual hot spot and its surrounding area within the preset heat dissipation time (in ℃ / s, specifically: |Equivalent temperature difference between the actual hot spot and its surrounding area at the initial moment of the preset heat dissipation time corresponding to the actual hot spot - Equivalent temperature difference between the actual hot spot and its surrounding area at the end moment of the preset heat dissipation time corresponding to the actual hot spot|÷Preset heat dissipation time). This is the fluctuation penalty coefficient (with a value greater than 0 and less than 0.5). The standard deviation of the cooling rate within the preset heat dissipation time corresponding to the actual hot spot (in °C / s). This is the reference value for G; This is the reference value for V; This is the reference value for E; This is a reference correction factor (with a value greater than 0 and less than 0.3).

[0093] The first determining unit (hotspot identification) is implemented as follows: Temperature sensor data (e.g., a 3×3 sensor array) is collected from hotspot areas; a K-means temperature clustering algorithm is used (cluster number 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: if set to 3℃, a temperature difference > 3℃ is considered a different cluster; the algorithm iteration count is set to 10 times to balance calculation speed and accuracy.

[0094] The standard deviation of the current actual hot spot and its surrounding area's historical temperature gradient fluctuation is calculated by collecting temperature gradient data from the past M periods.

[0095] Baseline parameters are determined by testing under standard operating conditions (25°C room temperature, 50% load) when the equipment leaves the factory.

[0096] The beneficial effects of the above technical solution are as follows:

[0097] In this scheme, the first determining unit collects temperature data of hotspot areas using a 3×3 temperature sensor array and processes the data using a K-means temperature clustering algorithm (with a cluster size of 2, i.e., hotspots and non-hotspots). This method accurately distinguishes between hotspot and non-hotspot areas. Compared to traditional single-sensor detection or simple threshold judgment methods, the hotspot range identification error is significantly reduced from the usual ±5mm to ±2mm, and the hotspot identification misjudgment rate can be controlled within 10%. This improved accuracy effectively avoids the problem of misallocation of heat dissipation resources caused by hotspot misjudgment, ensuring that subsequent heat dissipation control measures are accurately applied to the actual hotspot areas, laying the foundation for efficient heat dissipation.

[0098] The third determining unit introduces a compensation coefficient K, which integrates the equivalent temperature gradient between the actual hot spot and its surrounding area (reflecting the real-time heat flow driving force) 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, resulting in a power inaccuracy rate as high as 30%-50% when operating conditions (such as load and ambient temperature) fluctuate. This solution, however, uses the compensation coefficient K to dynamically correct the heat dissipation power, reducing the power calculation deviation to within 8%, allowing the heat dissipation power to adapt to complex and changing operating conditions in real time, and ensuring the stability of the heat dissipation effect.

[0099] The constructed performance coefficient W is correlated with the average cooling rate of the actual hotspot and the rate of change of the equivalent temperature difference between the actual hotspot and its surrounding area within a preset heat dissipation time. A fluctuation penalty term is also introduced, upgrading the evaluation system from a single temperature difference dimension to a three-dimensional system encompassing heat dissipation speed, heat transfer trend, and heat dissipation stability. Practical verification shows that compared to the traditional method of evaluating heat dissipation effect solely based on temperature difference, its matching degree with actual heat dissipation quality is improved to 90%, enabling a more comprehensive and accurate quantification of heat dissipation effect and providing a reliable basis for subsequent adjustments to heat dissipation strategies.

[0100] The first control unit employs a segmented power regulation strategy combined with a compensation coefficient correction mechanism. In the first half of the preset heat dissipation time, based on the actual heat dissipation power of the area surrounding the hot spot, the temperature control unit outputs relatively high power to enhance initial heat dissipation. In the second half, based on the target heat dissipation power of the hot spot after the preset heat dissipation time, the output power is adjusted to maintain heat dissipation stability. After implementing this strategy, the hot spot cooling rate fluctuation is reduced from ±0.3℃ / s in the traditional scheme to ±0.1℃ / s, the average cooling rate increases from approximately 0.3℃ / s to 0.5℃ / s, and the total cooling amplitude within the preset heat dissipation time increases by approximately 67%. Simultaneously, segmented regulation avoids sudden power changes, reducing thermal stress shocks caused by drastic temperature fluctuations and protecting the components.

[0101] The second determining unit in the scheme first performs precise calculation and control of the heat dissipation power of the surrounding area of ​​the actual hot spot. By pre-cooling the surrounding area, a reasonable temperature gradient field can be effectively constructed. For example, within a preset heat dissipation time, allowing the temperature of the surrounding area to decrease as expected can create a "temperature difference driving force" from the hot spot to the surrounding area. When directly cooling the hot spot later, the heat flow can be transferred more smoothly from the hot spot to the surrounding area, improving the heat dissipation efficiency of the hot spot. Tests have shown that after pre-cooling the surrounding area according to the heat dissipation power of the surrounding area, the cooling rate of the subsequent hot spot heat dissipation stage can be increased by 10%-15% on the original basis, making the entire heat dissipation process more efficient and coordinated.

[0102] If heat dissipation in the surrounding area is not prioritized, the heat generated by the hot spot can easily accumulate in the surrounding area, leading to a narrowing of the temperature difference between the hot spot and its surroundings. This weakens the natural heat dissipation driving force, and even direct heat dissipation to the hot spot later will be less effective. This solution uses segmented control, pre-setting the heat dissipation time for the surrounding area to promptly disperse any potentially accumulated heat and maintain a reasonable temperature gradient between the hot spot and its surroundings. In actual operation, this reduces the probability of "secondary heating" caused by heat accumulation in the surrounding area from 20%-30% in traditional pre-heat dissipation solutions to less than 5%, ensuring that heat dissipation in the hot spot always takes place within a favorable temperature environment.

[0103] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A multi-functional card reader for TDC cards, characterized in that The shell mechanism is internally provided with a printed board assembly; The printed board assembly comprises a printed board one (13), a printed board two (11), and a TDC card connector (14), the printed board one (13) is connected with the printed board two (11) through an inter-board connector, and the TDC card connector (14) is connected on the printed board two (11); 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 the TDC card connector (14); The printed board one (13) is used for converting 5V voltage input from a USB port into power required by an internal chip of a card reader; The printed board two (11) is used for interconnecting and intercommunicating a USB2.0 and USB3.0 bus and a TDC data bus, and simultaneously outputting a state indication, so that a user monitors a state of the card reader; The printed board assembly further comprises a temperature sensor, a temperature regulation module, and a control module; A plurality of temperature sensors are arranged on each predicted hotspot area of a printed board surface; The control module comprises: A first determination unit is used for determining a position, a range, and an initial temperature value of an actual hotspot through a temperature clustering algorithm based on temperature sensor detection values of the hotspot area; A third determination unit is used for determining a compensation coefficient corresponding to the actual hotspot based on an equivalent temperature gradient of the actual hotspot and a surrounding area of the actual hotspot and historical temperature gradient fluctuation data of the actual hotspot and the surrounding area of the actual hotspot when the actual hotspot is detected; A second determination unit is used for determining a surrounding area heat dissipation power of the actual hotspot based on temperature sensor detection values of the surrounding area of the actual hotspot, the initial temperature value of the actual hotspot, and the compensation coefficient corresponding to the actual hotspot when the actual hotspot is detected; A fourth determination unit is used for determining an initial predicted heat dissipation power of a local hotspot after a preset heat dissipation duration based on the surrounding area heat dissipation power of the actual hotspot; An effect coefficient acquisition unit is used for determining an effect coefficient of the actual hotspot based on an average temperature reduction rate within a preset heat dissipation duration corresponding to the actual hotspot and an equivalent temperature difference change rate of the actual hotspot and the surrounding area of the actual hotspot within the preset heat dissipation duration corresponding to the actual hotspot; A fifth determination unit is used for determining a target heat dissipation power of the actual hotspot after the preset heat dissipation duration based on the initial predicted heat dissipation power of the local hotspot after the preset heat dissipation duration and the heat dissipation effect coefficient of the actual hotspot; A first control unit is used for controlling the temperature regulation unit to dissipate heat from the surrounding area of the actual hotspot for the preset heat dissipation duration and then dissipate heat from the actual hotspot according to the target heat dissipation power of the actual hotspot after the preset heat dissipation duration.

2. The TDC card multifunction card reader according to claim 1, characterized in that, The shell mechanism comprises: A shell (9) is connected with an upper cover plate (1), one side of the shell (9) is provided with an opening (91), a baffle (6) is hinged in the opening (91) through a connecting column (5), a spring (7) is sleeved on the connecting column (5), and the spring (7) is connected with the shell (9); A printed board fixing frame (2) is connected with an inner wall of the shell (9); Two ears (4) are connected with opposite two outer walls of a non-opening side of the shell (9), and a TDC card connector (14) penetrates the printed board fixing frame (2). When the TDC card is inserted, the TDC card presses the baffle (6) to open inwardly, the PVC sheet (8) and the upper cover plate (1) guide the TDC card to be connected with the TDC card connector (14) of the printed board assembly.

3. The TDC card multifunction card reader according to claim 2, characterized in that, Also comprising: Two sets of upper baffle (3), two sets of lower baffle (10), the upper part of the outer side wall of the shell (9) provided with the ear (4) is connected with the upper baffle (3), and the lower part of the outer side wall of the shell (9) provided with the ear (4) is connected with the lower baffle (10).

4. The TDC card multifunction card reader according to claim 2, characterized in that, Also comprising: PVC sheet (8), PVC sheet (8) is arranged in the shell (9), and the PVC sheet (8) is arranged horizontally and vertically to the opening side of the shell (9).

5. The TDC card multifunction card reader according to claim 3, characterized in that, The length of the shell (9) is 100mm, the width is 92mm, and the height is 36mm, and two ears (4) are connected at both ends of the width direction of the shell (9); after the two ears (4) are connected, the maximum distance of the two ears (4) along the width direction of the shell (9) is 114mm.

6. The TDC card multifunction card reader according to claim 1, characterized in that, The length of the printed board one (13) is 86mm, and the height is 26mm.

7. The TDC card multifunction card reader according to claim 1, characterized in that, The length of the printed board one (13) is 83mm, and the height is 26mm.

8. The TDC card multifunction card reader according to claim 1, characterized in that, Also comprising a plurality of fixed column groups, the fixed column group comprising two printed board fixed columns (12), two printed board fixed columns (12) are arranged on the printed board one (13) and the printed board two (11) respectively, and the corresponding two printed board fixed columns (12) are connected through a connecting piece.

9. The TDC card multifunctional card reader according to claim 1, wherein, The compensation coefficient K corresponding to the current actual hot spot is calculated based on the following formula: ； wherein, is the current actual hotspot's equivalent temperature gradient with its surrounding area; is the current actual hotspot's reference temperature gradient with its surrounding area; is the current actual hotspot's historical temperature gradient fluctuation standard deviation with its surrounding area; is the current actual hotspot's reference temperature gradient fluctuation standard deviation with its surrounding area; is the first weight; is the second weight.

Images