Construction record device and construction record system
By installing rotatably connected construction recording equipment in the worker's clothing pocket, the problem of limiting the number of cameras in the existing equipment is solved, and simple configuration and effective recording of worker operation records are realized.
Patent Information
- Application Number
- JP2023536237
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- Filing Date
- 2021-07-19
- Publication Date
- 2025-03-18
- Estimated Expiration
- 2041-07-19
AI Technical Summary
The existing construction recording equipment uses dome cameras, which limits the number of cameras and makes it difficult to achieve simple configuration for workers' operation recording.
A construction recording device is designed that by installing a camera and power supply in the worker's clothing pocket, it uses a rotatable connecting portion to ensure that the camera is always facing forward and maintains the recording direction of the worker's operation.
It realizes a simple configuration of worker operation records, ensuring that the camera is always facing forward and can effectively record the worker's work process.
Smart Images

Figure 0007647890000001 
Figure 0007647890000002 
Figure 0007647890000003
Abstract
Description
[Technical field]
[0001] The present disclosure relates to a construction recording device. [Background technology]
[0002] Patent Document 1 discloses a construction recording device that captures images of work being performed by workers. [Prior art documents] [Patent documents]
[0003] [Patent Document 1] Japanese Patent Publication No. 2020-26319 Summary of the Invention [Problem to be solved by the invention]
[0004] However, the construction recording device described in Patent Document 1 uses a spherical camera, which limits the types of cameras that can capture images.
[0005] The present disclosure has been made to solve the above-mentioned problems. It is an object of the present disclosure to provide a construction recording device that is capable of capturing images of work by a worker with a simple configuration. [Means for solving the problem]
[0006] Books The construction recording device according to the disclosure is attached to the cloth of a pocket of a worker's clothes, and is attached to the cloth of a pocket of a worker's clothes, In the photography department The apparatus includes a camera body for photographing the work of the worker, a power supply body for supplying power to the camera body, and an attachment body for holding the camera body and the power supply body on the clothing of the worker so that the posture of the camera body is maintained in a direction in which the work of the worker can be photographed. The attachment body has a camera body attachment section to which the camera body is attached, a power supply body attachment section to which the power supply body is attached, and one end of the camera body attachment section and one end of the power supply body attachment section. In the direction in which the other end of the imaging body attachment part approaches or moves away from the other end of the power supply attachment part, A connection part that is rotatably connected to the When the power source is attached to the other end of the power source attachment section, the photographing body is attached to the other end of the photographing body attachment section, and the power source is stored inside the pocket, the other end of the photographing body attachment section is moved by the connection section in a direction approaching the other end of the power source attachment section, so that the attachment section holds the photographing body and the power source so as to maintain the posture of the photographing body in a direction in which the work of the worker can be photographed, the photographing section faces the front of the pocket, and the photographing body and the power source sandwich the cloth on the front surface of the pocket. . In addition, the construction recording device according to the present disclosure is attached to the cloth of a pocket of a worker's clothes, In the photography department The apparatus includes a camera body for photographing the work of the worker, a power supply body for supplying power to the camera body, and an attachment body for holding the camera body and the power supply body on the clothing of the worker so that the posture of the camera body is maintained in a direction in which the work of the worker can be photographed. The attachment body has a camera body attachment section to which the camera body is attached, a power supply body attachment section to which the power supply body is attached, and one end of the camera body attachment section and one end of the power supply body attachment section. The other end of the imaging body attachment part is rotatable in a direction in which it approaches or moves away from the other end of the power supply attachment part. and a connection portion for applying a force in a direction in which the other end of the imaging body attachment portion and the other end of the power source attachment portion approach each other. When the power source is attached to a position including one end of the power source attachment part, the photographing body is attached to a position including one end of the photographing body attachment part, and the power source is stored inside the pocket, a force is applied to the connection part in a direction in which the other end of the photographing body attachment part approaches the other end of the power source attachment part, so that the attachment part holds the photographing body and the power source so as to maintain the posture of the photographing body in a direction in which the work of the worker can be photographed, the photographing part faces the front of the pocket, and the photographing body and the power source sandwich the cloth on the front surface of the pocket. .
[0008] The construction recording system of the present disclosure comprises the construction recording device, an access point installed inside an elevator hoistway and capable of communicating with the construction recording device, a monitoring device that receives information from the construction recording device via the access point, and a database that records the information received from the monitoring device. Ma In addition, the construction record system according to the present disclosure is In the photography department a construction recording device including a camera body for photographing the work of a worker, a power supply body for supplying power to the camera body, and an attachment body for holding the camera body and the power supply body against the helmet of the worker so that the posture of the camera body is maintained in a direction in which the work of the worker can be photographed; an access point provided inside an elevator hoistway and capable of communicating with the construction recording device; a monitoring device that receives information from the construction recording device via the access point; and a database that records information from the monitoring device. The mounting body is a band-shaped member that can be fixed to the helmet, and when fixed to the helmet, holds the power supply body at the rear and holds the imaging body at the front so that the imaging unit faces forward of the operator. Construction record system. Effect of the Invention
[0009] According to the present disclosure, the orientation of the imaging body is maintained in a direction that allows imaging of the worker's work, and therefore the worker's work can be captured with a simple configuration. [Brief description of the drawings]
[0010] [Figure 1] 1 is a configuration diagram of an elevator system to which a construction recording device in a first embodiment is applied. [Diagram 2] 1 is a front view of a construction recording device according to a first embodiment. [Diagram 3] 1 is a side view of the construction recording device in the first embodiment. [Figure 4] FIG. 11 is a schematic diagram of a construction recording device in a second embodiment. [Diagram 5] FIG. 11 is a front view of the construction recording device in the second embodiment. [Figure 6] FIG. 11 is a side view of the construction recording device in the second embodiment. [Figure 7] FIG. 11 is a side view of the construction recording device in the third embodiment. [Figure 8] FIG. 11 is a front view of the construction recording device in the third embodiment. [Figure 9] FIG. 11 is a side view of the construction recording device in the third embodiment. [Figure 10] FIG. 13 is a side view of the construction recording device in the fourth embodiment. [Figure 11] FIG. 13 is a front view of the construction recording device in the fifth embodiment. [Figure 12] FIG. 23 is a schematic diagram of a construction recording device in the sixth embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0011] The embodiments will be described with reference to the accompanying drawings. In each drawing, the same or corresponding parts are denoted by the same reference numerals. Duplicate descriptions of the parts will be appropriately simplified or omitted.
[0012] Embodiment 1 FIG. 1 is a configuration diagram of an elevator system to which a construction recording device according to a first embodiment is applied.
[0013] In the elevator system of Fig. 1, a hoistway 1 passes through each floor of a building (not shown). A machine room 2 is provided directly above the hoistway 1. Each of a plurality of landings (not shown) is provided on each floor of the building. Each of the plurality of landings (not shown) faces the hoistway 1.
[0014] The hoisting machine 3 is provided in the machine room 2. The main rope 4 is wound around the hoisting machine 3.
[0015] A car 5 is provided inside the hoistway 1. The car 5 is hung on one side of the main ropes 4. A counterweight 6 is provided inside the hoistway 1. The counterweight 6 is hung on the other side of the main ropes 4.
[0016] The control device 7 is provided in the machine room 2. The control device 7 is provided so as to be able to control the elevator as a whole. The monitoring device 8 is provided in the machine room 2. The monitoring device 8 is provided so as to be able to monitor the state of the elevator based on information from the control device 7.
[0017] The cloud 9 is provided so as to be accessible from the monitoring device 8 via a network.
[0018] For example, the database 10 is provided in a server of a management company. The database 10 is provided so as to be communicable with the cloud 9 via a network.
[0019] The multiple access points 13 are provided inside the elevator shaft 1. The multiple access points 13 are provided so as to be able to communicate with the monitoring device 8. For example, the multiple access points 13 are realized by Power over Ethernet (registered trademark) in which power is supplied through a LAN cable.
[0020] The construction recording device 14 is carried by the worker 12. The construction recording device 14 stores information on the work performed by the worker 12. The construction recording device 14 transmits information on the work performed by the worker 12 to the monitoring device 8 via any of the access points 13.
[0021] The monitoring device 8 receives information from the construction recording device 14 via the access point 13. The monitoring device 8 transmits information about the work performed by the worker 12 to the cloud 9 via the Internet. The cloud 9 transmits the information about the work performed by the worker 12 to the database 10 via the Internet. The database 10 records the information about the work performed by the worker 12.
[0022] For example, the agent 11 is a manager of an elevator installation company. For example, the agent 11 accesses the database 10 by connecting to a VPN from a mobile terminal. By accessing the database 10, the agent 11 grasps the work performed by the worker 12.
[0023] Next, an overview of the construction recording device 14 will be described with reference to FIG. Fig. 2 is a front view of the construction recording device in the embodiment 1. Fig. 3 is a side view of the construction recording device in the embodiment 1.
[0024] As shown in FIGS. 2 and 3, the construction recording device 14 includes a photographing body 15, a power supply body 16, a cable body 17, and an attachment body 18.
[0025] The photographing body 15 includes a photographing section C, a recording section 19 and a communication section 20.
[0026] For example, the photographing body 15 is a camera. The photographing unit C is provided so as to be able to photograph still images or moving images. The recording unit 19 is provided so as to be able to store information on the photographed images. The communication unit 20 is provided so as to be able to communicate with the access point 13 (not shown).
[0027] For example, the power supply 16 is a mobile battery. The power supply 16 is provided so as to be able to supply power.
[0028] The cable body 17 is provided so as to be connectable to one end of the imaging body 15 and one end of the power source body 16. The cable body 17 is provided so as to be able to supply power from the power source body 16 to the imaging body 15.
[0029] The mounting body 18 includes an imaging body mounting portion 21, a power supply mounting portion 22, and a connection portion 23.
[0030] The imaging body attachment part 21 is provided so that the imaging body 15 can be detachably attached. The power supply attachment part 22 is provided so that the power supply 16 can be detachably attached. For example, the connection part 23 is a hinge. The connection part 23 rotatably connects one end of the imaging body attachment part 21 and one end of the power supply attachment part 22 together.
[0031] During installation, the worker 12 stores the power supply unit 16 inside the pocket 24 of his / her clothes. After that, the worker 12 checks whether the other end of the camera body attachment part 21 is close to the other end of the power supply attachment part 22. Z The connecting part 23 is rotated in the direction toward the front of the pocket 24. As a result, the photographing body 15 and the power supply 16 sandwich the fabric on the front of the pocket 24. At this time, the posture of the photographing body 15 is maintained in a direction that allows the photographing body 15 to photograph the work of the worker 12. Specifically, the posture of the photographing body 15 is maintained in a state in which the photographing part C faces the front of the pocket 24 of the worker 12.
[0032] According to the first embodiment described above, the posture of the imaging body 15 is maintained in a direction that allows imaging of the work of the worker 12. Therefore, the work of the worker 12 can be imaged with a simple configuration.
[0033] The power supply unit 16 may supply power to the imaging body 15 in a state in which the mounting unit 18 holds the imaging body 15 and the power supply unit 16 so as to maintain the orientation of the imaging body 15 in a direction that allows imaging of the work of the worker 12. In this case, the work of the worker 12 can be more reliably captured.
[0034] In addition, the photographing body 15 is attached to the fabric of the pocket 24 of the clothes of the worker 12 by the attachment body 18. This makes it possible to prevent the construction recording device 14 from moving relative to the pocket 24. As a result, the work of the worker 12 can be photographed more reliably.
[0035] Furthermore, the power supply unit 16 is stored inside the pocket 24 in a state where the mounting unit 18 holds the imaging unit 15 and the power supply unit 16 so that the orientation of the imaging unit 15 is maintained in a direction that allows imaging of the work of the worker 12. This makes it possible to prevent the construction recording device 14 from moving relative to the pocket 24. As a result, the work of the worker 12 can be more reliably filmed.
[0036] Moreover, the imaging body 15 is detachably attached to the mounting body 18. Therefore, various types of imaging bodies 15 can be used for the construction recording device 14.
[0037] Furthermore, the connection part 23 rotatably connects one end of the imaging body attachment part 21 and one end of the power supply body attachment part 22. Therefore, the construction recording device 14 can be easily attached to the clothing of the worker 12.
[0038] The imaging body 15 is attached to the pocket 24 of the worker 12 with the imaging unit C facing forward. Therefore, the imaging body 15 can image the work of the worker 12 by following the movement of the worker 12.
[0039] Moreover, the agent 11 grasps the work performed by the worker 12 by accessing the database 10. Therefore, even if the agent 11 is not always present at the work site, the worker 12 can be made aware that he or she is being monitored. As a result, the worker 12 can be made aware of safe behavior.
[0040] Furthermore, the agent 11 can grasp the status of work without visiting the work site, which allows efficient management of multiple work sites.
[0041] Furthermore, the recording unit 19 stores information on the images captured by the photographing unit C. Therefore, if a problem occurs at the work site, the agent 11 can easily check the images. At this time, the agent 11 may provide technical support to the worker 12 remotely while viewing the images.
[0042] The camera 15 may include a microphone for picking up sound. In this case, the recording unit 19 may also store sound information.
[0043] The attachment body 18 may be attached to a part of the clothing of the worker 12 other than the pocket 24 .
[0044] Embodiment 2 Fig. 4 is a schematic diagram of a construction recording device in embodiment 2. Fig. 5 is a front view of the construction recording device in embodiment 2. Fig. 6 is a side view of the construction recording device in embodiment 2. Note that parts that are the same as or equivalent to parts in embodiment 1 are given the same reference numerals. Explanation of these parts will be omitted.
[0045] 4, the mounting body 18 is a clip-shaped member. The mounting body 18 does not include the power supply mounting portion 22, but includes a plug-in portion 25.
[0046] The insertion portion 25 is a plate-shaped member.
[0047] The connection portion 23 connects one end of the imaging body attachment portion 21 and one end of the insertion portion 25 .
[0048] As shown in Fig. 5 and Fig. 6, during construction, the worker 12 stores the power supply unit 16 inside the pocket 24 of his / her clothes. At this time, the worker 12 inserts the other end of the insertion part 25 into the inside of the pocket 24. As a result, the photographing body 15 and the power supply unit 16 sandwich the fabric on the front side of the pocket 24. At this time, the position of the photographing body 15 is maintained in a direction that allows the worker 12's work to be photographed. Specifically, the position of the photographing body 15 is maintained in a state in which the photographing part C faces the front of the pocket 24 of the worker 12.
[0049] According to the second embodiment described above, the insertion portion 25 is inserted into the inside of the pocket 24. Therefore, the work of the worker 12 can be photographed with a simple configuration.
[0050] Embodiment 3 Fig. 7 is a side view of the construction recording device in embodiment 3. Fig. 8 is a front view of the construction recording device in embodiment 3. Fig. 9 is a side view of the construction recording device in embodiment 3. Note that parts that are the same as or equivalent to parts in embodiment 1 are given the same reference numerals. Explanation of these parts will be omitted.
[0051] 7, the connection portion 23 includes a spring portion 26. The spring portion 26 applies a force in a direction in which the other end of the imaging body attachment portion 21 and the other end of the power supply attachment portion 22 approach each other.
[0052] As shown in FIG. 8 and FIG. 9, during construction, the worker 12 stores the power source 16 inside the pocket 24 of the clothes. Specifically, the worker 12 applies force in a direction in which one end of the photographing body attachment part 21 and one end of the power source attachment part 22 approach each other, and inserts the other end of the power source attachment part 22 inside the pocket 24 of the clothes. After that, the worker 12 removes the force that was applied in the direction in which one end of the photographing body attachment part 21 and one end of the power source attachment part 22 approach each other. As a result, the photographing body 15 and the power source 16 sandwich the cloth on the front side of the pocket 24. At this time, the orientation of the photographing body 15 is maintained in a direction in which the work of the worker 12 can be photographed. Specifically, the orientation of the photographing body 15 is maintained in a state in which the photographing part C faces forward of the pocket 24 of the worker 12.
[0053] According to the third embodiment described above, the spring portion 26 applies a force in a direction in which the other end of the imaging body attachment portion 21 approaches the other end of the power supply body attachment portion 22. Therefore, the work of the worker 12 can be photographed with a simple configuration.
[0054] It is also possible to provide magnets at the other end of the camera attachment part 21 and the other end of the power supply attachment part 22 without providing the spring part 26. In this case, the construction recording device 14 can be attached to the pocket 24 of the worker 12 by the magnetic force of the magnets.
[0055] Embodiment 4 10 is a side view of the construction recording device in the embodiment 4. The same or corresponding parts as those in the embodiment 3 are denoted by the same reference numerals, and the description of these parts is omitted.
[0056] 10, the lighting unit 27 is provided on the side of the cable unit 17 that faces the imaging unit 15. The lighting unit 27 lights up when the imaging unit 15 and the power supply unit 16 are in an electrically conductive state.
[0057] According to the fourth embodiment described above, the lighting unit 27 is provided on the cable unit 17. Therefore, it is possible to easily check from the outside whether the imaging unit 15 and the power supply unit 16 are in an electrically conductive state.
[0058] In addition, the lighting unit 27 consumes a portion of the power. Therefore, even if the power consumed by the photographing unit 15 alone is too small to supply sufficient power from the power supply unit 16, the power from the power supply unit 16 can be supplied to the photographing unit 15.
[0059] The lighting unit 27 may blink when the photographing unit 15 and the power supply unit 16 are in an energized state.
[0060] In addition, the lighting body 27 may change color when the photographing body 15 and the power source 16 are in a conducting state.
[0061] Embodiment 5. 11 is a front view of a construction recording device in accordance with embodiment 5. The same reference numerals are used to designate parts that are the same as or correspond to parts in embodiment 3. Explanation of these parts will be omitted.
[0062] 11, the lighting unit 27 is provided on one side of the lower front surface of the photographing unit 15. The lighting unit 27 lights up when the photographing unit 15 and the power supply unit 16 are in an electrically conductive state.
[0063] According to the fifth embodiment described above, the lighting unit 27 is provided in the imaging unit 15. Therefore, it is possible to easily check from the outside whether the imaging unit 15 and the power supply unit 16 are in an electrically conductive state.
[0064] In addition, the lighting unit 27 consumes a portion of the power. Therefore, even if the power consumed by the photographing unit 15 alone is too small to supply sufficient power from the power supply unit 16, the power from the power supply unit 16 can be supplied to the photographing unit 15.
[0065] The lighting unit 27 may blink when the photographing unit 15 and the power supply unit 16 are in an energized state.
[0066] In addition, the lighting body 27 may change color when the photographing body 15 and the power source 16 are in a conducting state.
[0067] Embodiment 6 12 is a schematic diagram of the construction recording device 14 in the embodiment 6. The same reference numerals are used to designate the same or corresponding parts as those in the embodiment 1. The description of these parts is omitted.
[0068] 12, the photographing body 15 includes a plurality of lighting bodies 27 around the photographing section C. The lighting bodies 27 are lit when the photographing body 15 and the power source 16 are in an electrically conductive state.
[0069] The attachment body 18 is an annular member. For example, the attachment body 18 is a band-like member that can be fixed to the helmet of the worker 12.
[0070] The front part of the mounting body 18 holds the imaging body 15. The rear part of the mounting body 18 holds the power supply body 16.
[0071] When the attachment body 18 is fixed to the helmet of the worker 12, the orientation of the imaging body 15 is maintained in a direction that allows imaging of the work of the worker 12. Specifically, the orientation of the imaging body 15 is maintained in a state in which the imaging unit C faces forward of the worker 12.
[0072] According to the fourth embodiment described above, the posture of the imaging body 15 is maintained in a direction that allows imaging of the work of the worker 12. Therefore, the work of the worker 12 can be imaged with a simple configuration.
[0073] In addition, in an elevator that does not have a machine room 2 and has a hoist 3, control device 7, and monitoring device 8 installed at the top or bottom of the elevator shaft 1, the construction recording device 14 of any of embodiments 1 to 6 may be applied. [Industrial Applicability]
[0074] As described above, the construction recording device disclosed herein can be used in elevator systems. [Explanation of symbols]
[0075] 1 elevator shaft, 2 machine room, 3 hoist, 4 main rope, 5 cage, 6 counterweight, 7 control device, 8 monitoring device, 9 cloud, 10 database, 11 agent, 12 worker, 13 access point, 14 construction recording device, 15 camera, 16 power supply, 17 cable, 18 mounting body, 19 recording section, 20 communication section, 21 camera mounting section, 22 power supply mounting section, 23 connection section, 24 pocket, 25 insertion section, 26 spring section, 27 lighting body
Claims
1. A photographing body attached to a cloth of a pocket of a worker's clothes and photographing the worker's work with a photographing unit; A power supply unit that supplies power to the imaging unit; a mounting body that holds the imaging body and the power source body relative to the clothing of the worker so that the orientation of the imaging body is maintained in a direction that allows imaging of the worker's work; Equipped with The mounting body is an imaging body attachment portion to which the imaging body is attached; a power supply attachment portion to which the power supply is attached; a connection part that connects one end of the imaging body attachment part and one end of the power supply body attachment part so as to be rotatable in a direction in which the other end of the imaging body attachment part approaches or moves away from the other end of the power supply body attachment part; Equipped with When the power supply unit is attached to the other end of the power supply unit mounting part, the photographing unit is attached to the other end of the photographing unit mounting part, and the power supply unit is stored inside the pocket, the other end of the photographing unit mounting part is moved by the connection part in a direction approaching the other end of the power supply unit mounting part, so that the mounting part holds the photographing unit and the power supply unit so as to maintain the orientation of the photographing unit in a direction capable of photographing the worker's work, the photographing unit faces the front of the pocket, and the photographing unit and the power supply unit sandwich the cloth on the front of the pocket.This construction recording device.
2. A photographing body attached to a cloth of a pocket of a worker's clothes and photographing the worker's work with a photographing unit; A power supply unit that supplies power to the imaging unit; a mounting body that holds the imaging body and the power source body relative to the clothing of the worker so that the orientation of the imaging body is maintained in a direction that allows imaging of the worker's work; Equipped with The mounting body is an imaging body attachment portion to which the imaging body is attached; a power supply attachment portion to which the power supply is attached; a connection section that rotatably connects one end of the imaging body mounting section and one end of the power supply mounting section in a direction in which the other end of the imaging body mounting section approaches or moves away from the other end of the power supply mounting section, and applies a force in a direction in which the other end of the imaging body mounting section and the other end of the power supply mounting section approach each other; Equipped with When the power supply unit is attached to a position including one end of the power supply unit mounting portion, the photographing unit is attached to a position including one end of the photographing unit mounting portion, and the power supply unit is stored inside the pocket, a force is applied to the connection portion in a direction that causes the other end of the photographing unit mounting portion to approach the other end of the power supply unit mounting portion, so that the mounting portion holds the photographing unit and the power supply unit so as to maintain the orientation of the photographing unit in a direction that allows it to photograph the worker's work, the photographing unit faces the front of the pocket, and the photographing unit and the power supply unit sandwich the cloth on the front of the pocket.This is a construction recording device.
3. 3. The construction recording device according to claim 1, wherein the mounting body is detachably attached to the imaging body.
4. The construction recording device according to any one of claims 1 to 3, wherein the power supply body supplies power to the photographing body while the mounting body holds the photographing body and the power supply body so as to maintain the orientation of the photographing body in a direction capable of photographing the work of the worker.
5. A lighting unit that lights up when the photographing unit and the power supply unit are in a conducting state; The construction recording device according to any one of claims 1 to 4, comprising:
6. The construction recording device according to claim 5 , wherein the lighting unit is provided on the imaging unit.
7. The construction recording device according to any one of claims 1 to 6, An access point provided inside an elevator shaft and capable of communicating with the construction recording device; A monitoring device that receives information from the construction recording device via the access point; a database for recording information from said monitoring device; A construction record system equipped with
8. A construction recording device comprising: a camera body for photographing a worker's work with a photographing section; a power supply body for supplying power to said camera body; and an attachment body for holding said camera body and said power supply body relative to said worker's helmet so that the posture of said camera body is maintained in a direction capable of photographing the work of said worker; An access point provided inside an elevator shaft and capable of communicating with the construction recording device; A monitoring device that receives information from the construction recording device via the access point; a database for recording information from said monitoring device; Equipped with The mounting body is a band-shaped member that can be fixed to the helmet, and when fixed to the helmet, holds the power supply body at the rear and holds the photographing body at the front so that the photographing unit faces forward of the worker. This is a construction recording system.
9. The construction recording device is provided with a lighting body that is provided around the shooting unit in the shooting body and lights up when the shooting body and the power supply body are in a conductive state, The construction record system according to claim 8.
Citation Information
Patent Citations
Monitoring system
JP2019134259A
Remote witness system and remote witness method
JP2020026319A
Remote camera relay controller method and apparatus
US6400903B1
Application dependent video recording device architecture
US9723192B1