# data[].attributes.body
这次的report成功的通过research和分析客户目标和约束，让团队清楚的知道了设计目标的优先级和标准，让团队在设计UFV的时候目标更加的清晰与准确。而且客户还可以通过查看报告，来确认团队的目标是否与其一致，及时对错误做出纠正。

# data[].attributes.body
This report successfully passed research and analysis of customer goals and constraints, allowing the team to clearly know the priorities and standards of the design goals, making the team's goals clearer and more accurate when designing UFV. Moreover, customers can also check the report to confirm whether the team's goals are consistent with them, and correct errors in a timely manner.

# data[].attributes.body
For the drive subsystem part of the equipment, it will need to be placed on the base of the vehicle, such as gearbox, receiver board, and wheel and axe need to be placed under the base for connection.
The purpose of the gear box is to allow the vehicle to move forward or backward. It will be connected to the battery, receiver board and wheel and axe. The connection of the battery allows the gear motor to receive power to rotate, and the connection with the wheel and axe is to allow the gear motor to drive the wheel and axe to rotate together when it is rotating, so as to allow the vehicle to move, and the receiver board The connection is to allow the gearbox to receive control commands, so that the vehicle can be controlled remotely to move forward, reverse, or stop. As for the position of the gearbox, the team prefers to be in the front, which makes it easier to move the vehicle, because the final design of the vehicle is to place the water tank in the center of the vehicle, which will increase the pressure on the vehicle and increase the friction. Make the vehicle need more force to move it. In this case, we can compare the front and rear wheels and axes to pulling the water tank and pushing the water tank. When pulling, the force of the force is horizontal and upward, and then push At the time, the force of the force is horizontal and downward, so compared to pushing, the method of pulling has less friction, which may reduce energy consumption and make the vehicle move more easily.

# data[].attributes.body
最后receiver board并没有被设定任何约束，但是他的功能就是在remote control在远程操作之后receiver board会受到信息然后进行指令，前进，后退，停止等动作需要被完成，他将会和control subsystem有着很多的关联.

# data[].attributes.body
对于drive subsystem部分的设备，会需要放置在车辆的底座上面，如gearbox， receiver board，而像wheel and axe则需要放置在底座下面来进行连接。
gear box 的目的是为了让能车辆进行前进或后退的移动，它将会与电池，receiver board和 wheel and axe进行连接。电池的连接可以让gear motor获得供电以此进行转动，和wheel and axe进行连接是为了让gear motor在转动的情况下带动wheel and axe一起进行旋转，以此来让车辆进行移动，

。而对于gearbox放置的位置，团队更倾向于在前面，这样可以更轻松地去移动车辆，因为车辆的最终设计是将水箱放置在车的中央，这会加重车辆的压力，摩擦力的增加就会使车辆需要更大的力去移动它，在这个情况我们可以把前面和后面的wheel and axes比喻成拉水箱和推水箱，在拉的时候，力的作用力是horizontal和向上的，而再推的时候，力的作用力是horizontal和向下的，所以相比于推，用拉的方法拥有着更小的摩擦力，可能更多的去降低耗能，也会让车辆更轻松地移动.

# data[].attributes.body
Finally, the receiver board is not set with any constraints, but its function is that after the remote control is operated remotely, the receiver board will receive information and then perform instructions. The forward, backward, and stop actions need to be completed. It will have a relationship with the control subsystem. Lots of connections.

# data[].attributes.body
这次的设计除了需要考虑gearbox的选择之外，还需要考虑轮胎和axe的材料，轮胎应选择有好抓地力能力的和steel的axe更加坚固，耐用。在它们和车辆底部连接的地方应使用吸管让axe与底部分隔开这样才能使wheel旋转进行前后移动.

# data[].attributes.body
In addition to the choice of gearbox, the design of this time also needs to consider the materials of tires and axes. The tires should be selected with good grip and steel axes to be more robust and durable. At the place where they are connected to the bottom of the vehicle, a straw should be used to separate the axe from the bottom so that the wheel can rotate and move forward and backward.

# data[].attributes.body
对于gearbox的选择，团队需要根据设计标准和客户的约束进行选择，例如这次电池的voltage，必须保持在13voltage 或以内，而且必须产品最后需要至少能运行6min等，而相对于gearbox，还需要考虑的一项就是rpm，这次会被考虑的区域在100-500rpm之前，最终产品会在之后得出结论。

# data[].attributes.body
通过使用决策矩阵，5个不同的标准，得出了3种设计的权重得分。
从表种可以发现接收器板拥有者的最高配重分数，流行为2.04，这是因为根据这次驱动子系统的设计目标，无人驾驶消防车将需要被远程遥控所以大部分的标准都将被接收器板所包含，如驱动器，控制，耐用性，安全性，它都拿到了高或者中间的分数除了对准，这是因为车子的垂直移动能力跟接收器板并没有任何关系，而相对于齿轮马达，它是第二重要的解决方案拥有着1.99的加权得分，他得到的高分在驾驶中，耐用性上面，但是控制和安全性是最低的分数，这是因为齿轮马达只能为车辆添加动能，让其能拥有前进和后退的能力，而它也必须要有电池的供能能力运转，所以gear motor的安全性的分数也不高。而最后车轮和轴有最低的加权分值，但是在对准和安全上，它得到了高分，这是因为车辆的路线是需要需要对称的wheel才能够垂直移动，而安全性高分，是因为wheel和axe没有任何潜在的危险。

# data[].attributes.body
For the gearbox selection, the team needs to choose according to design standards and customer constraints. For example, the voltage of the battery must be kept at or below 13voltage, and the product must be able to run for at least 6 minutes at the end. Compared with the gearbox, it needs to be considered. One item is rpm. This time the area to be considered is before 100-500rpm, and the final product will be concluded later.

# data[].attributes.body
在2020 1月份的时候中国chongqing成功的设计出了第一台高层消防无人机，并且进行了消防演习，演习的地点被设置在高楼上，根据这个信息可以比较一下UFV，如果当高度到达一定程度，UFV可能将处理不到火灾的源头， However，虽然unmanned firefighting drone有着比UFV更加旷阔的灭火区域，但是它并不能携带足够水源，它需要使用water pipe于消防车进行连接，这样就可以拥有着助攻的供水去进行灭火，而在未来的进步下，应该以UFV和UFD为主要灭火设备，消防车则成为辅助供水设备.

# data[].attributes.body
从research中可以发现，尝试使用unmanned firefighting vehicle人群的目的都是一样的，减少火灾对消防员和社区所造成的潜在危险，同时制止火灾.对于这次的设计Unmanned firefighting vehicle完全可以胜任这一目标，However，如果可以尝试其他的设计，Unmanned firefighting drone会是一个非常不错的选择，因为他的造价，和设计都将更加的简单，并且能够相近的work efficiency， drone上可以装设热能摄像头和喷水枪，让消防人员们在远程就可能清楚的了解火灾的情况，并进行灭火，轻松的制止火灾，如果进行比较的话drone的操作将会简单轻松而且性价比更高。

# data[].attributes.body
Through the use of the decision matrix and 5 different criteria, the team is able to obtain the weighting scores of 3 different designs.
As demonstrated on the table,  the highest counterweight score of the receiver board owner is 2.04, as according to the design goals of the drive subsystem, the unmanned firefighting vehicle will need to be remotely controlled. Hence, most of the standards will be contained by the receiver board, such as the driver, control, durability and safety. These aspects all have high or intermediate scores except for alignment due to the vertical movement of the car which has nothing to do with the receiver board. As for gear motors, it is the second most important solution with a weighted score of 1.99, mainly because of the strength on its driving and durability. On the other hand, control and safety have the lowest scores as gear motors can only help the vehicle to add kinetic energy, allowing it to have the capability to move forwards and backwards. It also needs battery to operate which again lowers the safety score of the gear motor. Lastly, although the wheels and axles have the lowest weighting scores, it still has a high score on alignment and safety as the route of the vehicle requires a symmetrical wheel to move vertically and the wheel and axe have no potential risks.

# data[].attributes.body
https://insideunmannedsystems.com/milrem-robotics-and-innovfoam-partner-to-develop-robot-firefighting-systems/

https://www.youtube.com/watch?v=1S3CPEEL_Jo

https://www.ichongqing.info/2020/01/22/the-first-fire-drill-for-high-rise-fire-fighting-drones-was-held-in-dazu-chongqing/

https://www.vedantu.com/question-answer/explain-why-pulling-is-easier-than-pushing-with-class-11-physics-cbse-5fdb5dd79f633c04d656a30d#:~:text=Friction%20is%20the%20force%20acting%20between%20the%20object%20and%20the%20surface.&text=So%2C%20when%20there%20will%20be,than%20to%20push%20a%20body.

# data[].attributes.body
In January 2020, Chongqing, China has successfully designed the first high-rise firefighting drone and conducted a fire-fighting drill. The location of the exercise was set on a high-rise building. The UFV can be compared with this information as the it might not be able to extinguish the fire when its height reaches a certain extent. However, although the unmanned firefighting drone has a wider fire fighting area, it cannot carry enough water, whereas the UFV can connect to a water pipe easily thus providing it with enough water supply to successfully extinguish the fire. With technology advancements in the future, UFV and UFD should be the main fire extinguishing method, and fire trucks are to be used as auxiliary water supply equipment.