After eating, Du Qiu and a few people finalized the plan and did not stay in the company.

He went to Aowei Sensing, a company that produces all kinds of sensors, and Du Qiu wanted to purchase a batch of customized sensors.

When the "Tianqing system" designed by Du Qiu is integrated with the hardware, in order to achieve the best state, the hardware part needs to be transformed and adapted accordingly.

Du Qiu has used a lot of sensors in this company when doing projects before, and the quality is not to say, the key is that they accept the customer's small batch customization needs.

Du Qiu is also considered to be their old customer, but this time Du Qiu's orders are much larger than before.

The treatment of large customers is naturally different, and the customization needs are quickly determined.

At their production speed, delivery is possible in three days.

After finalizing the matter, Du Qiu declined the dinner invitation of the Ogilvy Sensing CEO.

It was only half past four in the afternoon, and Du Qiu couldn't sit back and wait for an hour or two for dinner.

What's more, he had to go to Qin Yun by the way and hand over the alarm watch to her.

Ogilvy Sensing is about fifteen minutes' drive from Qin Yun's shipyard, which is not very far.

Du Qiu drove the car, and his mobile phone showed a navigation map that he had remodeled.

"Didi, there is congestion on the planned route, do you want to take alternate route one?" The phone suddenly sounded.

Du Qiu glanced at it, immediately pressed OK on the mobile phone screen, and the car then drove according to the new route.

Within a few minutes, the car was navigated to a side road, which was rarely trafficked and was supposed to be a road that went around the side of the shipyard.

The car didn't drive for long, and Du Qiu's mobile phone suddenly sent out a "Dudu Dudu, found abnormal signal transmission!" Voice.

"Well, what's going on? Someone is stalking me? ”

Du Qiu muttered in surprise, but he didn't stop to check, he carefully looked in the rearview mirror.

There were no vehicles following him on the deserted road.

Du Qiu slowed down the car, his eyes quickly scanning around.

On the left side of the road is the tall fence of the shipyard, and on the right there are a number of buildings of various styles, which seem to be a mix of factory-like buildings, as well as a mix of old residential buildings of five or six storeys, all of which look like they were from the seventies and eighties of the last century.

The car continued to move forward, and when it came to the intersection, there was a building, which was a hotel.

Du Qiu was about to turn left when he suddenly saw a woman getting out of a van in front of the hotel, and he was a little surprised.

He pulled over, then picked up his phone and dialed the number.

"Officer Ning, are you busy?"

The woman Du Qiu saw was Ning Shuangshuang, she was not wearing a police uniform today, she was wearing a light gray long-sleeved shirt on her upper body, and a pair of black straight-leg pants on her lower body, looking like a female college student.

After she got out of the car, she was about to walk to the hotel gate, but after answering Du Qiu's call, she walked to the side.

"You're looking for me?"

"Are you on vacation or at work?"

Ning Shuangshuang suddenly raised his head and glanced around, "Did you see me?" ”

Du Qiu didn't expect Ning Shuangshuang to react so sharply, and he could guess that he saw her with just one sentence.

"How clever! See the third car parked on the side of the road in front of you? I was in the car. ”

As soon as Du Qiu finished speaking, she saw Ning Shuang looking over to herself, and then she hung up the phone and walked to the van that got down earlier, as if she had said something to the car.

Then, Ning Shuangshuang walked towards Du Qiu.

Sitting in the car, Ning Shuangshuang stared at Du Qiu with a pair of eyes.

"Hey, Officer Ning, I'll be embarrassed if you stare at me like this."

"You happened to be here again?"

"That's right, I'll come to the shipyard to find Qin Yun and send her an alarm. Who let your protective measures be reversed? ”

Ning Shuangshuang retracted his gaze and asked, "What alarm?" ”

"I made it myself, in the shape of a watch, as long as Qin Yun and the others are in danger, press the button, they can call the police, and they can show the location."

"Aren't you studying unmanned driving? How could such a thing be made? ”

"Officer Ning, I just worked in an unmanned technology company before, I am a doctor of mechanical and electronics, and I am also familiar with electronic products."

Du Qiu said, still asking curiously, "You should be working, right?" I didn't bother you, did I? ”

"It's work, but asking why you're here is also part of the scope of work." Ning Shuangshuang looked at Du Qiu and asked, "Tell me, how did you take this path?" ”

"I came from the west, and the original road was stuck in traffic, so I re-navigated and came around here."

Du Qiu suddenly woke up and asked carefully, "Are you protecting the shipyard?" No wonder you will protect Qin Yun, she is the person from the shipyard. ”

A hint of appreciation flashed in Ningshuang's eyes, but he said, "Don't ask what you shouldn't ask." If you want to deliver something, just hurry up, Qin Yun should get off work in a while. ”

Saying that, Ning Shuangshuang was about to get out of the car, but suddenly she stopped her movements, turned around and asked, "You are familiar with electronic products?" ”

"yes."

"Is there a way to hear the sound of the target room from a distance of more than 800 meters without a bug?"

Du Qiu thought for a while and said, "There are many ways, you can use bionic electronic flies to fly to the window of the target room."

It is also possible to use a bullet bug to shoot the bug into the wall of the target room with a firearm. ”

Ning Shuangshuang shook his head and said slowly: "None of these should be there, we can make sure that there are no such electronic items in the target room."

In fact, within a radius of several hundred meters, it is impossible for an unidentified electronic object to approach the target room. ”

"There is also a type that does not require electronic objects to approach the target, only needs to use a laser to illuminate the glass window of the target room to listen to the conversation of people in the target room."

"What?" Ning Shuangshuang was taken aback and asked, "How to detect this way?" ”

"It is possible to detect the presence of abnormal signal transmission ...... in the vicinity"

As soon as Du Qiu said this, he suddenly remembered that when the car came over just now, the warning network system on his car detected abnormal information transmission.

"What do you think?" Ning Shuangshuang saw Du Qiu's face change and asked guessingly.

"Officer Ning, my car is equipped with a detection system, and when I just came over, it seemed that an abnormal information transmission was detected."

"Where? Take me there! ”

Du Qiu hurriedly started the car, turned around at the intersection, and slowly drove back.

When passing by the old-fashioned residential buildings, Du Qiu's mobile phone sent out another alarm prompt.

"Doodoo, abnormal signal transmission has been discovered!"

Ning Shuangshuang looked at Du Qiu's mobile phone and asked, "Can you locate it accurately?" ”

Du Qiu picked up the mobile phone, clicked on the APP interface, and the mobile phone screen immediately displayed a three-dimensional space map of 200 meters around Du Qiu's car.

A red dot is displayed on the location of a house next to the road, and the height value is displayed next to it, and after a simple conversion, it can be determined to be the top six floor of the house.

"It's on the sixth floor of the building on the side of the road, and it's supposed to be the room to the north."

"You sit here and don't move!"

Ning Shuangshuang pushed the car door and got out of the car, turned on the communication headset on the neckline, and issued a series of orders.

Then she walked to the residential building first.

When Du Qiu saw it, didn't he, such a tiger, didn't he wait for his companions to arrive?

Just as he was about to get out of the car to help, he saw Ning Shuangshuang suddenly turn around and wave his hand at him.