Distance detection device and distance detection method thereof

Abstract

The present application is a distance detecting device and a distance detecting method thereof. The distance detecting device receives an external measuring light signal echo by using a light sensing element to trigger a conversion element to generate a receiving detecting electrical signal. The conversion element generates a distance measuring data to an operation processing unit according to the receiving detecting electrical signal and a reference electrical signal. The operation processing unit compresses and operates a plurality of first item data of the distance measuring data to generate a plurality of first operation data. The first operation data is stored as a storage data of the distance detecting device. The first item data corresponds to a plurality of first storage addresses of the distance detecting device. The first operation data corresponds to a plurality of second storage addresses of the distance detecting device. A first address quantity of the first storage addresses is greater than a second address quantity for the second storage addresses. Therefore, the present application can save more storage addresses and increase the detecting distance of the distance detecting device.

Description

Technical Field

[0001] This invention relates to a sensing device and method thereof, and more particularly to a distance detection device and method thereof. Background Technology

[0002] With the evolution of technology, electronic devices have developed into more diverse applications based on life needs. To improve the safety, convenience, and even entertainment of life, distance detection technology has become an indispensable part, such as Time of Flight (ToF).

[0003] Currently, Time-of-Flight (TOF) technology has a wide range of applications, including consumer electronics such as tablets and smartphones, as well as vehicles such as active automatic emergency braking. It is often used in conjunction with hydraulic brake control systems or Electronic Stability Program (ESP) systems.

[0004] However, existing distance detection technologies face the problem of storage space relative to detection distance. As the detection distance increases, the stored distance measurement data will occupy more storage space.

[0005] In summary, how to provide a ranging technology that can reduce the storage space of ranging data is a technical problem that urgently needs to be solved in this field. Summary of the Invention

[0006] One objective of this invention is to provide a distance detection device and a distance detection method thereof. The device uses a processing unit to compress and process distance measurement data generated by a conversion element based on a received detection signal and a reference signal. Based on multiple first items of the distance measurement data, it generates multiple corresponding first processed data. The number of storage addresses occupied by these first processed data is less than the number of storage addresses occupied by the first items. Thus, the distance detection device can use the saved storage addresses to store more distance measurement data, thereby increasing the detection distance.

[0007] To achieve the aforementioned objectives, the present invention provides a distance detection method applied to a distance detection device for detecting a target object. First, a photosensitive element of the distance detection device receives an external measurement light signal echo, triggering a conversion element to generate a receiving detection electrical signal. The conversion element generates distance measurement data based on the receiving detection electrical signal and a reference electrical signal, and sends this distance measurement data to a processing unit of the distance detection device. This distance measurement data includes multiple first-order data items. Finally, the processing unit compresses and processes these first-order data items to generate multiple first-order data items, which are then stored as stored data of the distance detection device. The number of first addresses corresponding to the multiple first storage addresses of the distance detection device for these first-order data items is greater than the number of second addresses corresponding to the multiple second storage addresses of the distance detection device for these first-order data items. Thus, the distance detection device of the present invention can utilize the saved storage addresses to store more distance measurement data, thereby increasing the detection distance.

[0008] This invention provides a distance detection device for detecting an object. The distance detection device includes a photosensitive element, a conversion element, and a processing unit. The conversion element is disposed between the photosensitive element and the processing unit. The photosensitive element receives an external measurement light signal echo, which drives the conversion element to generate a received detection signal. The conversion element generates ranging data and sends it to the processing unit based on the received detection signal and a reference electrical signal. The ranging data includes multiple first-order data. The processing unit compresses and processes the first-order data and generates multiple first-order data to store the first-order data as stored data. The number of first addresses corresponding to the multiple first storage addresses of the distance detection device is greater than the number of second addresses corresponding to the multiple second storage addresses of the distance detection device. Thus, the distance detection device of this invention can utilize the saved storage addresses to store more ranging data, thereby increasing the detection distance. Attached Figure Description

[0009] Figure 1 This is a flowchart of a distance detection method according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the signal transmission of a distance detection device according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the detection signal according to an embodiment of the present invention; Figure 4 This is a schematic diagram illustrating the conversion of detection signals into ranging data according to an embodiment of the present invention. Figure 5A This is a schematic diagram of the number of operation terms in one embodiment of the present invention; Figure 5B This is a schematic diagram of compression operation according to an embodiment of the present invention; Figure 6 This is a schematic diagram of compression operation according to another embodiment of the present invention; Figure 7 This is a schematic diagram of the signal transmission of a distance detection device according to another embodiment of the present invention; Figure 8A This is a schematic diagram of the signal transmission of a distance detection device according to another embodiment of the present invention; and Figure 8B This is a schematic diagram of the signal transmission of a distance detection device according to another embodiment of the present invention. [Figure Number Reference Guide] 10 Distance Detection Devices 11 light-emitting elements 12 photosensitive elements 122 optical signal 124 detection signal 14 conversion elements 142 ranging data 144 First Item Data 1442 First storage address 146 Second Item Data 16 processing units 16A cache unit 162 First Calculation Data 1622 Second storage address 18 detection histograms 18A First Detection Histogram 18B Second Detection Histogram 182 First background value 184 First test value 20 storage units 22. Store histograms 22A First Storage Histogram 22B Second Storage Histogram 222 Second Background Value 224 Second test value AM Ambient Light C centroid C1 First Center of Gravity C2 Second Centroid D Stores Data D1 First Storage Data D2 Second Storage Data DS1 reference signal DS2 receives detection signals H1 First Energizing Potential H2 second enabling potential L1 detection light L2 optical signal echo P detection distance P1 First Detection Distance P2 Second Detection Range O Test Object T time interval Steps S10 to S142 Detailed Implementation

[0010] To provide a better understanding of the structural features and effects achieved by the present invention, preferred embodiments and detailed descriptions are provided below:

[0011] Certain terms are used in the specification and claims to refer to specific elements. However, those skilled in the art will understand that the same element may be referred to by different names. Furthermore, the specification and claims do not distinguish elements by differences in name, but rather by differences in the overall technical aspects of the elements. The term "comprising" throughout the specification and claims is an open-ended term and should be interpreted as "comprising but not limited to." Moreover, the term "coupled" here includes any direct and indirect means of connection. Therefore, if a first device is described as coupled to a second device, it means that the first device can be directly connected to the second device, or can be indirectly connected to the second device through other devices or other means of connection.

[0012] In view of the problem of storage space relative to detection distance faced by existing distance detection technologies, the present invention proposes a distance detection device and a distance detection method thereof, which generates a second distance detection data based on a first distance detection data, and the number of first addresses of multiple first storage addresses corresponding to the first distance detection data is greater than the number of second addresses of multiple second storage addresses corresponding to the second distance detection data, thereby allowing the present invention to reduce the storage address occupied by the storage data and thus increase the detection distance.

[0013] The invention will be described in detail below by way of the drawings illustrating various embodiments thereof. However, the concept of the invention may be embodied in many different forms and should not be construed as being limited to the exemplary embodiments set forth herein.

[0014] First, please refer to Figure 1 The figure shows a flowchart of a distance detection method according to an embodiment of the present invention. As shown in the figure, the distance detection method of this embodiment includes the following steps:

[0015] Step S10: The photosensitive element triggers the conversion element to generate a receiving detection signal based on the light signal corresponding to the object under test;

[0016] Step S12: Using a conversion element, ranging data is generated based on the received detection signal and the reference signal and sent to the processing unit; and

[0017] Step S14: Use the arithmetic processing unit to compress and process the first item data and generate the first arithmetic data, so as to store the first arithmetic data as stored data.

[0018] Please refer to the following: Figure 2 This is a schematic diagram of signal transmission of a distance detection device according to an embodiment of the present invention. As shown in the figure, the distance detection device 10 of the present invention includes a light sensing element 12, a conversion element 14 and a processing unit 16, wherein the light sensing element 12 and the processing unit 16 are both coupled to the conversion element 14. The photosensitive element 12 generates multiple detection signals 124 based on multiple light signals 122 and sends them to the conversion element 14. The conversion element 14 generates ranging data 142 and sends it to the processing unit 16. The processing unit 16 performs calculations based on multiple first items 144 of the ranging data 142, thereby generating multiple first calculation data 162, which are stored as storage data D. The ranging data 142 corresponds to a centroid C of a detection histogram 18, and the storage data D corresponds to a storage histogram 22, which has the centroid C. Therefore, the storage data D still corresponds to the centroid C. The number of storage addresses used by the first items 144 is greater than the number of storage addresses used by the first calculation data 162. Thus, the distance detection device 10 obtains and stores the first calculation data 162, which occupies fewer storage addresses, through the processing unit 16, thereby increasing the detection distance corresponding to the ranging data 142. Details will follow.

[0019] In step S10, this embodiment uses a Time-of-Flight (TOF) optical sensor as an example of the photosensitive element 12, specifically Direct Time-of-Flight (DTOF). The photosensitive element 12 generates multiple detection signals 124 based on the optical signals 122. These optical signals 122 refer to multiple optical signal echoes L2 or multiple received photons received by the photosensitive element 12. Examples of photosensitive elements 12 include: Complementary Metal-Oxide Semiconductor (CMOS) sensors, Single-Photon Avalanche Diode (SPAD) sensors, and Avalanche photodiodes (APDs). However, the invention is not limited to these and can also be applied to Indirect Time-of-Flight (DTOF) sensors. Whether it is DTOF or ITOF, both require the use of a photosensitive element 12 to sense the light signal 122 in order to generate a corresponding detection signal 124. The difference is that ITOF detects the reflected light of continuous wave light, while DTOF detects the reflected light of multiple pulse light.

[0020] See also Figure 2 See also Figure 3 The distance detection device 10 further includes a light-emitting element 11. The processing unit 16 generates a reference electrical signal DS1 to control the light-emitting element 11 to emit a detection light L1 to the object under test O and simultaneously provide it to the conversion unit 14. Subsequently, when the photosensitive element 12 receives a light signal echo L2 corresponding to the object under test O, it triggers the conversion element 14 to generate a receiving detection signal DS2. Therefore, the conversion element 14 receives the reference electrical signal DS1 and the receiving detection signal DS2. In addition, the reference electrical signal DS1 can be generated by an external controller to drive the light-emitting element 11 to emit the detection light L1 and simultaneously provide the reference electrical signal DS1 to the conversion element 14. For example, a controller implemented by a SOC digital circuit, FPGA, or microprocessor (MCU).

[0021] Continuing from the above, this embodiment uses the received detection signal DS2 as an example to detect the detection signals 124 of the object under test O. However, the present invention is not limited to this. In order to improve accuracy, the light-emitting element 11 can generate multiple detection lights L1. Therefore, the photosensitive element 12 will receive multiple light signal echoes L2. Similarly, the number of reference electrical signals DS1 and the number of received detection signals DS2 can also be increased to increase detection accuracy.

[0022] In step S12, refer back to Figure 2See also Figure 3 and Figure 4 In this embodiment, the conversion element 14 generates corresponding ranging data 142 based on the detection signals 124. A time interval T exists between a first enable potential H1 of the reference electrical signal DS1 and a second enable potential H2 of the received detection signal DS2. Furthermore, the time interval T exists between the rising edge of the first enable potential H1 and the rising edge of the second enable potential H2. The rising edge of the optical signal echo L2 corresponds to the rising edge of the second enable potential H2. In this embodiment, the conversion element 14 counts based on the time interval T, thus converting it into ranging data 142. Figure 4 As shown, this embodiment uses a 14-bit Time to Digital Converter (TDC) as an example of the conversion element 14. Therefore, the ranging data 142 in this embodiment is a 14-bit TDC data. For example, the TDC converts the time interval between two pulse signals into 14-bit TDC data. For instance, the time interval T between the reference signal DS1 and the received detection signal DS2 is converted into 14-bit TDC data, that is, 14 bits of XX_XXXX_XXXX_XXXX can be 00_0000_0000_0000 to 11_1111_1111_1111, which is used to represent the ranging data 142. In DTOF detection technology, the ranging data 142 corresponds to a 14-bit histogram data (such as...). Figure 2 The detection histogram 18 shown converts the time interval between the reference signal DS1 and the received detection signal DS2 into least significant bit (LSB) data to facilitate subsequent data processing. The above 14 bits is an example, and the present invention is not limited to this. It can be adjusted according to the detection distance P. Therefore, it can be 5 bits to 24 bits, or even up to 128 bits.

[0023] In step S14, as Figure 2 As shown, and see also Figure 5A The text further reveals that the processing unit 16 receives the ranging data 142 and performs calculations on the first items 144 of the ranging data 142 to obtain the first calculated data 162. Specifically, the processing unit 16 performs a compression operation. In this embodiment, the processing unit 16 moves the odd-numbered items of the first items 144 to the storage address of the even-numbered items of the first items 144, thereby performing a 2x compression. The operation principle is derived from the centroid C of the detection histogram 18 and the storage histogram 22, as shown in equation (a):

[0024] Where C is the centroid, i×H(i) is the item number, i is the storage address, and H(i) is the data value. Therefore, odd-numbered item numbers are represented as (2n+1)×H(2n+1), while even-numbered item numbers at storage address 2n have a data value of H(2n), i.e., (2n)×H(2n), and at storage address 2n+2 have a data value of H(2n+2), i.e., (2n+2)×H(2n+2). Figure 5A As shown, in this embodiment, the 2x compression operation is that the processing unit 16 splits the odd-numbered data into two H(2n+1) / 2, and stores them in the even-numbered data storage address 2n and the storage address 2n+2 respectively. Therefore, the storage address 2n+1, which was originally used to store the odd-numbered data of these first-numbered data 144, will be freed up. However, the compressed data needs extra bits to store the integer and decimal items.

[0025] like Figure 5B As shown, this embodiment uses a storage address pointing to a 5-bit address as an example to illustrate the compression operation method of the present invention. The first item data 144 are [0, 1, 3, 7, 6, 5, 4, 3, 2, 1, 0, 0, 0, 0, 0, 0], which are stored in the first storage address 1442, which is

[00000] to

[10000] . The processing unit 16 performs a 2x compression operation, thus compressing the first item data 144 by a factor of 2. In this embodiment, the 2x compression operation involves moving the odd-numbered items of the first item data 144 to the storage address of the even-numbered items. At this time, the first operation data 162 are [0.5, 7, 12, 8, 4, 0.5, 0, 0, 0]. Therefore, these... The second storage address 1622 occupied by the first operational data 162 is approximately half the first storage address 1442 occupied by the first item data 144. However, the present invention is not limited to this. The compression ratio can be set according to the application scenario, for example, compression can be performed from 2 to 16 times. The first item data 144 are temporarily stored in a cache unit 16A of the processing unit 16 for compression operations by the processing unit 16 to generate the first operational data 162, which can be temporarily stored in the cache unit 16A. Thus, the processing unit 16 stores the first operational data 162 as the stored data D and stores it in a storage unit 20, such as flash memory, cache, static random access memory, or solid-state drive. The aforementioned processing unit 16 can be implemented by SOC digital circuits, FPGA, or microprocessor (MCU).

[0026] For example, the first data item 144 consists of 16384 data items, each 10 bits long. After a 2x compression operation, it becomes approximately 8192 data items, but each 12 bits long. This means that after the 2x compression, an extra bit is added to store the integer item and an extra bit is added to store the decimal item. Thus, the data is compressed from 163840 bits to approximately 98304 bits, which is a 60% reduction in address space. This saves 40% of the storage address space. The saved storage address space can be used to increase the first data item 162 generated after increasing the detection distance P. In terms of the address space compression ratio, a 2x compression is equivalent to increasing the distance measurement data 142 by 1.67 times (i.e., 1 / (60%) = 1.67), which means the detection distance can be increased by 1.67 times. In this way, the detection distance P of the photosensitive element 12 can be increased without increasing the memory space. That is, the ratio of the number of storage addresses before and after the operation corresponds to the detection distance P of the distance detection device 10.

[0027] like Figure 6 As shown, Figure 5 and Figure 6 The difference lies in the fact that the processing unit 16 in Figure 5 compresses these first-item sub-data 144 to a factor of 2. Figure 6 The processing unit 16 compresses the first item data 144 to 8 times compression. Based on 8 times compression, the first operation data 162 requires 3 bits to store integer items and 3 bits to store decimal items. Therefore, after 8 times compression, each item data is a 16-bit data. 8 times compression compresses 16384 items data to approximately 2048 items data. Thus, it compresses approximately 32768 bits of data from 163840 bits, which is a 20% reduction in address quantity. Therefore, it saves 80% of storage address. Corresponding to the address quantity compression ratio, 8 times compression can increase the ranging data 142 by 5 times (i.e., 1 / (20%) = 5) compared to the original data. Correspondingly, the detection distance P increases by 5 times. Therefore, as shown in Figure 5... Figure 6 It is known that the lower the address compression ratio, the greater the increase in detection distance P. That is, the address compression ratio of these first-order data 144 is inversely proportional to the detection distance P. As described above, the compression operation of this invention changes the address compression ratio, but... Figure 2 As shown, the number of histogram bars in the detection histogram 18 is different from that in the storage histogram 22, but the centroid C remains unchanged. Therefore, even if the stored data D is decompressed, there will still be no detection distortion. Furthermore, the address number multiples between the first storage address 1442 of the first item data 144 and the second storage address 1622 of the first operation data 162 are mapping relationships of different multiples of complex arrays.

[0028] Please see Figure 7 , Figure 7 This is a schematic diagram of the signal transmission of a distance detection device according to another embodiment. In this embodiment, in addition to detecting the reflected light L2, the photosensitive element 12 further detects the ambient light AM. Therefore, the received detection signal DS2 includes the background noise of the ambient light AM and the actual detection signal. Thus, when the conversion element 14 generates the ranging data 142 based on the reference electrical signal DS1 and the received detection signal DS2, the ranging data 142 will include data corresponding to the background noise. Therefore, the first data items 144 partially or completely include multiple background values ​​corresponding to the background noise and multiple test values ​​corresponding to the actual detection signal.

[0029] Continuing from the above, such as Figure 7 As shown, it is similar to Figure 2 The difference lies in Figure 7 The detection histogram 18 further includes a plurality of first background values ​​182 and a plurality of first detection values ​​184. The storage histogram 22 further includes a plurality of first background values ​​222 and a plurality of second detection values ​​224. In this embodiment, the photosensitive element 12 detects ambient light AM, causing the reference signal DS1 and the received detection signal DS2 to contain background noise. Therefore, the detection histogram 18 corresponding to the ranging data 142 in this embodiment will contain the first background values ​​182 and the first detection values ​​184. The background values ​​182 are commonly referred to as background noise. That is, the stored data D finally stored in the storage unit 20 also corresponds to the storage histogram 22. Thus, the stored data D also corresponds to the second background values ​​222 and the second detection values ​​224. Furthermore, the average value of the first background values ​​182 and the second background values ​​222 is inversely proportional to the ratio of the number of addresses of the first storage addresses 1442 of the first item data 144 to the number of addresses of the second storage addresses 1622 of the first operation data 162. In other words, the values ​​of the first background values ​​182 and the second background values ​​222 are inversely proportional to the compression ratio of the number of addresses of the first operation data 162.

[0030] Also, please see Figure 8A and Figure 8B This is a schematic diagram of the signal transmission of a distance detection device according to another embodiment of the present invention. It is related to... Figure 7 The difference lies in Figure 8A The processing unit 16 performs compression calculations based on a first detection distance P1. Figure 8B The processing unit 16 does not perform compression operations based on the fact that a second detection distance P2 is less than the first detection distance P1. Specifically, Figure 8A Same as Figure 7The processing unit 16 performs compression operations on the first items 144 of the ranging data 142 of the first detection distance P1 to generate the first operation data 162, and thus stores them as a first storage data D1. Therefore, the first detection histogram 18A corresponding to the first storage data D1 is equivalent to the detection histogram 18 in the previous embodiment. That is, the processing unit 16 performs operations on the first items 144 in the cache unit 16A to generate the first operation data 162.

[0031] Following on from the above, such as Figure 8B As shown, the processing unit 16 directly stores multiple second-order data 146 of the ranging data 142 based on a second detection distance P2 into a second stored data D2. Since the second detection distance P2 is less than the first detection distance P1, and the number of corresponding storage addresses for each second-order data 146 is less than the number of first-order data 144, meaning that the second detection distance P2 corresponding to each second-order data 146 is closer to the photosensitive element 12, the second detection histogram 18B corresponding to each second-order data 146 is less than the number of first-order data 144. Similarly, the second stored histogram 22B corresponding to the second stored data D2 is also smaller than the first stored histogram 22A. Furthermore, the first centroid C1 of the first stored histogram 22A is different from the second centroid C2 of the second stored histogram 22B. The first centroid C1 corresponds to the first detection distance P1, and the second centroid C2 corresponds to the second detection distance P2. Thus, the distance detection device 10 of the present invention can detect the object O under different detection distances. That is, the distance detection device 10 will decide whether to further perform compression operations based on different detection distances.

[0032] In summary, the present invention provides a distance detection device and its detection method. First, a photosensitive element of the distance detection device receives an external measurement light signal echo. Based on the external measurement light signal echo, a conversion element of the distance detection device generates a corresponding receiving detection electrical signal. Then, the conversion element uses the receiving detection electrical signal and a reference electrical signal to generate distance measurement data, which is sent to a processing unit of the distance detection device. The processing unit compresses and processes multiple first-order data items of the distance measurement data, generating multiple first-order data items for storage. The number of addresses corresponding to these first-order data items in the multiple first storage addresses of the distance detection device is greater than the number of addresses corresponding to these first-order data items in the multiple second storage addresses of the distance detection device. Thus, the distance detection device of the present invention can utilize the saved storage addresses to store more distance measurement data, thereby increasing the detection distance.

[0033] The order of the steps in the above embodiments does not imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this application.

[0034] The above description is merely a preferred embodiment of the present invention and is not intended to limit the scope of the present invention. All equivalent variations and modifications made in accordance with the shape, structure, features and spirit described in the claims of the present invention should be included within the scope of the claims of the present invention.

Claims

1. A distance detection method, characterized in that, It is applied to a distance detection device, which includes a light sensing element, a conversion element, and a processing unit. The detection method includes: The photosensitive element receives an external measurement light signal echo, which triggers the conversion element to generate a receiving detection electrical signal; Using the conversion element, a ranging data is generated based on a reference electrical signal and the received detection electrical signal and sent to the processing unit. The ranging data includes a plurality of first-order data, each first-order data corresponding to a histogram; and Using the processing unit, the odd-numbered items of the first items are moved to the storage address of the even-numbered items of the first items to obtain multiple first operation data. These first operation data are then stored as a single storage data. The number of first addresses corresponding to the multiple first storage addresses of the first items is greater than the number of second addresses corresponding to the multiple second storage addresses of the distance detection device. These first-order data points correspond to a quality center, and these first-operation data points correspond to that quality center.

2. The distance detection method as described in claim 1, characterized in that, The ratio between the number of the first address and the number of the second address corresponds to a detection distance of the photosensitive element.

3. The distance detection method as described in claim 2, characterized in that, The ratio between the number of the first address and the number of the second address represents the mapping relationship between different ratios of the complex array.

4. The distance detection method as described in claim 1, characterized in that, In the step of using the arithmetic processing unit to compress and process the first items of data and generate multiple first operation data, and storing the first operation data as a storage data, the arithmetic processing unit further stores the storage data in a storage unit.

5. The distance detection method as described in claim 1, characterized in that, The ranging data further includes multiple second-order data. The processing unit directly stores these second-order data, and the first distance corresponding to these first-order data is greater than the second distance corresponding to these second-order data.

6. The distance detection method as described in claim 1, characterized in that, The first data items include multiple measured values ​​and multiple background values, which correspond to the reference signal and the received detection signal, respectively. The average value of the background values ​​is inversely proportional to the address number compression ratio corresponding to the first data items and the first operational data.

7. The distance detection method as described in claim 1, characterized in that, The reference signal is generated by either the processing unit or an external controller.

8. The distance detection method as described in claim 1, characterized in that, The first operational data includes at least one bit for storing an integer item and at least one bit for storing a decimal item.

9. A distance detection device, characterized in that, Include: A photosensitive element for receiving the echo of an external measurement light signal; and A conversion element is coupled to the photosensitive element. The conversion element generates a receiving detection signal when the photosensitive element receives the echo of the measurement light signal, and generates ranging data based on a reference signal and the receiving detection signal. The ranging data includes a plurality of first sub-data items, and the first sub-data items correspond to a rectangle. An arithmetic processing unit coupled to the conversion element, wherein the arithmetic processing unit moves the odd-numbered data of the first-numbered data to the storage address of the even-numbered data of the first-numbered data to obtain a plurality of first-numbered data, and stores the first-numbered data as a storage data, wherein the number of first addresses of the plurality of first storage addresses corresponding to the first-numbered data is greater than the number of second addresses of the plurality of second storage addresses corresponding to the distance detection device; These first-order data points correspond to a quality center, and these first-operation data points correspond to that quality center.

10. The distance detection device as described in claim 9, characterized in that, The ratio between the number of the first address and the number of the second address corresponds to a detection distance of the photosensitive element.

11. The distance detection device as described in claim 10, characterized in that, The ratio between the first address and the second address represents the mapping relationship between different ratios of the complex array.

12. The distance detection device as described in claim 9, characterized in that, The processing unit further stores the stored data in a storage unit.

13. The distance detection device as described in claim 9, characterized in that, The ranging data further includes multiple second-order data. The processing unit directly stores these second-order data, and the first detection distance corresponding to these first-order data is greater than the second detection distance corresponding to these second-order data.

14. The distance detection device as described in claim 9, characterized in that, The first data items include multiple measured values ​​and multiple background values, which correspond to the reference signal and the received detection signal, respectively. The average value of the background values ​​is inversely proportional to the address number compression ratio corresponding to the first data items and the first operational data.

15. The distance detection device as described in claim 9, characterized in that, The reference signal is generated by either the processing unit or an external controller.

16. The distance detection device as described in claim 9, characterized in that, The first operational data includes at least one bit for storing an integer item and at least one bit for storing a decimal item.

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