It took more than a day, until the moment before he was forced to quit, Yang Tiancai, with the assistance of Xiao Ran, completed the topographic map within a radius of 10,000 miles with the newly established "Yingtianfu" as the center through mechanical bees, scanners, mobile phone cameras and other sensing equipment.

Topographic maps are thick and thin, with scales ranging from 1 million to 1 to 1, and can be made at any time as needed.

Back on Earth, Yang Tian printed a 500,000-to-1 scale map, taking in the terrain in a radius of thousands of miles. Then, through the division of terrain, rivers, mountains, etc., the entire land within a radius of thousands of miles was divided into nine provinces, and each province was divided into six to 15 provinces according to the terrain.

After such a plan, Yang Tian actually had an unprecedented sense of excitement, as if he had really expanded his territory. It's like some people making a new version of China's map on the Internet and turning all the xx countries into xx provinces, which can undoubtedly bring a sense of coolness. And what is even more refreshing than such a boring unrealizable intention is that the place planned by Yang Tian is possible.

He was a little excited at the thought that one day, the territory he circled on the map might become the land of Yang Kingdom. The so-called map opening up is nothing more than this.

The next day, Heizi dragged a boatload of construction machinery over, and Yang Tian also urgently downloaded some tutorials for driving machinery, and also brought a notebook, a projector, and a printer, as well as thousands of walkie-talkies and some signal conversion and amplification equipment. These equipment were originally prepared by Huo Liuli for the Qingshi Club to be used by the Tianyang Island Patrol Team, but they were temporarily requisitioned by Yang Tian.

Even if there is a 100-cubic-cube space cabin, it can only carry some small and medium-sized excavators, mixers, cranes, etc.

Once these machines are brought into the wizarding world, they are sure to be revolutionary. If it weren't for the limited population controlled by Yang Tian, he was afraid that the miracle of building a city overnight would have happened.

Returning to the newly planned construction site of Yingtianfu Lihuo City, Yang Tian first distributed a walkie-talkie to those who were above the head of the fire guard team. With the walkie-talkie, Xiao Ran can come in handy, and he can assist Yang Tian in conducting accurate commands.

In fact, the best should be a mobile phone, but a mobile phone needs the cooperation of a mobile phone signal, but it is not as easy to use as a walkie-talkie.

In this way, hundreds of walkie-talkies were distributed, and at the same time, Yang Tianba's signal conversion and amplification equipment was installed and debugged, which greatly expanded the radius of use of walkie-talkies, so that walkie-talkies could be used within two kilometers.

With such equipment, Xiao Ran can supervise the whole process. After all, the first phase of the plan is only one mile long from the city wall of Fire City.

With the technological equipment of walkie-talkie, although it is only primitive technological equipment, Xiao Ran also comes in handy. Since Xiao Ran is just a program, it can be multi-threaded, and because of the power of Xiao Ran's own hardware, this multi-threading is almost infinite.

Therefore, it is completely trivial to accurately command thousands of construction workers.

With these walkie-talkies, Yang Tian was also freed from the heavy command work and became his hands-off shopkeeper with peace of mind. And Xiao Ran has also found something to do, and he won't be so boring and idle anymore.

Originally, the signal converter didn't have many functions, and the walkie-talkie could only transmit sound, but after the intervention of Xiaorantai's super light brain, many unexpected functions were realized. For example, through radio wave positioning, separate wiring to wire change, etc., and the telephone has to fight.

You have to know that the general walkie-talkie is like doing a group chat, and if you want to find someone, you have to say your name to call. And what you are talking about, everyone else can hear. And because of Xiao Ran's intervention, there is the function of transferring wires and separate wiring, so that the walkie-talkie and walkie-talkie can be one-to-one or one-to-many communication, which is equivalent to opening private chat and group chat in group chat.

The function of radio wave positioning is to locate a device through the different characteristics of the radio waves exchanged between walkie-talkies. At the same time, it can also analyze the interference elements encountered during the propagation of radio waves, and locate some people and things, and even blur the image...... It all sounds amazing, but it requires very good computing power, and the computers on the earth are afraid that they are not capable of this kind of task, or even if they can be competent for this kind of task, they will not use it like this, because there are too many technologies on the earth that can be used for positioning and imaging, so that they will not be realized by radio waves between walkie-talkies.

However, in the wizarding world, there is no such technological equipment at all, so when the radio waves emitted between the walkie-talkies fill the space, they can be used by Xiao Ran for positioning and blurring imaging.

However, due to the limitations of radio waves themselves, they cannot be accurately imaged, and can only be blurred. And most of the time it can't be pinpointed, and it can only be pinpointed when there are enough devices turned on.

It can be said that the use of radio waves of walkie-talkies for positioning and imaging is caused by insufficient equipment and insufficient equipment. There is no professional positioning and imaging equipment, and the equipment in this area is not enough, and Xiao Ran's computing power is too strong, so the computing equipment is too sufficient.

So when Yang Tian saw that the map displayed on the screen of the assistance system could accurately locate everyone, he was shocked.

As long as Yang Tian said who he was looking for, Xiao Ran could immediately display a map on the screen, locate that person for Yang Tian, and provide the option to connect to the walkie-talkie, so that Yang Tian could directly connect to that person's walkie-talkie.

Just when Yang Tian thought that he could always be the shopkeeper, Xiao Ran suddenly asked a question: "You also need a new light brain, otherwise after you return to Earth, I will follow and go into hibernation." I won't be able to command them for you. ”

"yes!" Yang Tian patted his head fiercely, this is indeed a problem. After all, Xiao Ran followed Yang Tian, but he was limited by the system itself and had no permission to use it on the earth. So after returning to Earth, Xiao Ran would enter a dormant state, and then the miniature optical brain that Yang Tian bought by himself would start to function.

"Where are you going to get a light brain?" Yang Tian was suddenly a little worried, it would be good if he was still in Flint Town, he could buy it online. But now he's on the other side of the planet, and even if he can buy it online, people won't offer delivery services.

And when he went back to buy it, he obviously didn't have the ability. As for using the laptop I brought with me...... Yang Tian didn't even think about it. Even if Xiao Ran can program a smart program to replace it, he can't bring this program with the computing power of that laptop.

Suddenly, Yang Tian thought of a device, his eyes lit up, and he asked Xiao Ran: "Is it okay for the computing chip of the mechanical bee?" (To be continued.) )