"Captain Cheng, I think it's better to be cautious in this matter." Li Guolin paused, and continued: "There are already three people who have disappeared underwater one after another, if someone goes down and something happens, no one can afford this responsibility." ”

"I know what you're talking about." Cheng Yan smiled: "But I have another way." ”

Another way?

Everyone looked at each other suspiciously, and saw puzzlement in each other's eyes.

"Of course, this method still needs to be asked by your maritime department." Cheng Yan said.

Li Guolin suddenly realized, "It turns out that you want to ......"

"Yes, that's right." Cheng Yan went out and made a phone call, waved to Li Guolin, and asked him to come over, the two of them stood on the side of the boat and grunted without knowing what to say, and after waiting for half an hour, a boat sailed over, and everyone understood what was going on.

It turns out that this solution is very simple, it is to use underwater robots!

Now small remote-controlled underwater robots are widely used in municipal drinking water systems, sewer inspections, cross-river and cross-river pipeline inspections, plus more important hull overhauls, ship bottom inspections, waterway troubleshooting, port operations and other projects are also used, so underwater robots are more common, and the technical means are also very mature.

The reinforcements called this time were the underwater robots of the Shipbuilding Industry Group Corporation, and under the influence of professionals, this yellow-colored underwater robot was slowly hoisted into the undulating river water by a cable.

Standing next to the longitudinal monitor on the ship, Cheng Yan and Xiao Ming, Li Guolin, Liu Zhe and others held their breath and watched the staff's control, and after some work, the 15-inch LCD screen sent a video message from the underwater robot.

In front of the underwater robot is two 20-watt halogen lights, and a wide-angle focusable 180-degree tilt head camera, which can see a distance of about five or six meters after turning on the lights underwater.

"Alright, everything is normal, let's get started," the staff gestured to OK, and the umbilical cable on the ship was gradually released under the command, sinking the underwater robot into the depths of the water.

"The VRDBX has a maximum underwater travel speed of 2.1 meters, and to be on the safe side, we can't drive the thrusters to maximum power, so the speed can be a bit slow." The staff member explained to Cheng Yan and the others.

"It's okay, we just need to search carefully." Cheng Yan didn't care.

With the underwater camera of the underwater robot, everyone can see the scene under the river on the monitor, and you can see that the speed of the water flow under the river is not slow, there are many tiny garbage and suspended objects floating underwater, and five or six meters away is a piece of water, and nothing can be seen clearly.

This VRDBX underwater robot, in addition to multi-beam sonar and positioning systems, also has metal detectors and radiation sensors, which are well-equipped and have a very good effect on underwater detection. The staff controlled the underwater robot, first spared a circle under the boat, and then approached the place where the original search and rescue patrol boat stayed to take a look, and after finding no clues, under the instructions of Li Guolin and Xiao Ming, they sank to the bottom.

"Hey, there's a change in the magnetic field and sonar, and there's something down there." The staff suddenly exclaimed.

"Something? What is it? Cheng Yan came over when he heard this.

"It was found by a metal detector, it must have been lost by some people on the ship before." The staff thought for a moment and opened his mouth to say. The Huangpu River has flourished for hundreds of years, and there are countless ships coming and going, and everything is thrown into it.

"Take a closer look." Cheng Yan said.

The staff didn't care, they controlled the thrusters of the underwater robot and slowly drove towards the bottom of the water.

The bottom of the water, which is nearly 20 meters deep, is already relatively calm, and under the illumination of the light, you can clearly see the black silt at the bottom of the water, and even see a few small fish swimming quickly around the camera.

"Wait, what's that?" Li Guolin pointed to the black shadow in the distance on the display screen and said.

All eyes were on him.

"Well, there's something there." Cheng Yan touched his chin.

Two halogen searchlights focused the light in front of them, and the camera began to focus, and as the robot advanced, the black shadow gradually became visible to everyone's noses.

"W-What is this?" Xiao Ming said in astonishment.

He was not the only one who was surprised, in fact, everyone present who was watching the display was very stunned, the so-called black shadow was actually a rather strange copper-colored metal object.

This copper-colored metal object, made up of dozens of metal slats staggered into a circle, resembles a bird's nest building, except that there are more and larger gaps in it. It's about a meter in diameter, and when the camera scans back and forth, you can see that this thing is worth a lot of money, and it must be an antique.

"This thing ......"

Everyone looked at each other, but they didn't expect that after using the underwater robot, they didn't find the clues of the missing person first, but found a thing that looked like an antique, what is this called?

"What should I do?" Li Guolin asked.

"What else can I do, mark the address, go find clues first, and then we will salvage this thing." Cheng Yan said helplessly.

No one has an opinion, although it seems that this thing should be notified to the cultural relics administration, but if it is encountered, the police can also take care of it.

The staff then controlled the underwater robot to search for other waters, more than an hour later, Li Guolin was dull and silent, while Xiao Ming was angry and extinguished the cigarette butts, after more than an hour of long search, three people who disappeared in this water area before and after, not to mention their shadows, even did not find the slightest clue left by them, how can it not be annoying.

"Damn, what's going on, I'm going to go down and see for myself."

The more he thought about it, the more angry he became, Xiao Ming couldn't figure out how his two team members were folded in his hands like this, and in a fit of anger, he was ready to jump into the water to take a look.

"Team Xiao, don't."

Several firefighters saw that something was wrong, and hurriedly pulled Xiao Ming.

"Captain Xiao, don't be impulsive, impulsiveness won't solve anything."

Cheng Yan also came over to dissuade him, "In this way, let's go downstream to search, and we can't just give up." ”

"By the way, can that thing be salvaged?" Cheng Yan turned to the staff and asked.

"That thing, huh? Well, it should be fine. The staff responded.

"Alright, you get that thing up."

Cheng Yan shouted: "Xiao Zhou, come over for a moment." ”

"What's the matter, Captain?" A young policeman approached.

"You go and inform the cultural relics department, and tell them that a cultural relic has been found here, and ask them to send someone to take a look."

"Okay, Captain." The young policeman agreed.

"Then let's go downstream first." Cheng Yan said to Li Guolin: "Comrade Li, you can continue to stay here and search, and inform me immediately if there is any situation." ”

"Okay, Captain Cheng, I'll notify you immediately if I find out."

Li Guolin beckoned Liu Zhe to come over: "Xiaoliu, you let them continue to use nets and bamboo poles to salvage." ”

"Okay." Liu Zhe reflexively and the rest of his colleagues search and rescue team members continued to salvage this water, although everyone knew that this was basically a process of working in vain, but no one complained, people had an accident, and even the body could not be recovered, how could this work, not to mention that among the three people who had the accident, there was also one person who was their colleague, and no one would complain about it.

While busy, Cheng Yan and other police and fire brigade personnel ran to the downstream waters, while Liu Zhe and the others stayed here, and on the ship of the Shipbuilding Heavy Industry Group Company, several staff began to salvage the suspected antique thing.

The thing is not a meter in diameter, but the interior is hollow, and the weight is not very heavy, the underwater robot easily buckles it and fixes it, and then the automatic cable winch follows the work, pulling the underwater robot to slowly rise from the bottom of the water.

While Liu Zhe and Li Hao were searching, they were also watching the salvage work over there, and when the underwater robot was pulled up, the strange object hanging under the robot was also displayed in everyone's sight.

When the underwater video signal comes back, I always feel that I can't look carefully enough, but at this time, I can obviously see the structure of this thing clearly with the naked eye, and even the lines on the copper bar can be seen.

"W-Is this really an antique?"

Li Hao was taken aback, pointed to the strange object hanging in the air a few meters away, and said, "Old Liu, look, there seem to be words on it." ”

"Well, maybe it's just a pattern."

Liu Zhe pondered: "Let's go, let's go up and have a look." ”

The two of them returned to the ship, and the staff on it did not stop them when they saw it, after all, they had been on the ship just now, and someone from the cultural relics department would come over later.

Closer to observe, Li Hao clapped his palms and said, "Look, it's really words." ”

Indeed, if it is a pattern, then it must be a delicate and repetitive engraving line, but on the dozens of staggered copper strips, like the imprints of hieroglyphs, different engravings on the surface of the copper strips, within the line of sight, Liu Zhe could not identify what kind of script it was.

It's not Lishu, it's not a small seal and a golden inscription, not even an oracle bone inscription, for the above words, there is no need to say much about the official book, Liu Zhe is very familiar with it, although he doesn't know the small seal and the oracle bone inscription, but the general shape and rules are also somewhat understood, but the text engraved on this thing is completely a new graphic symbol.

"But what's the word carved on it?"

Li Hao didn't have the same knowledge in this area as Liu Zhe, he lost interest when he looked at it, to him, this thing might be very valuable, but it's a pity that so many people are looking at it, can it still be put in his pocket? Since it's useless for me, after watching the excitement, the interest disappears immediately.

"Strange, what the hell is this?"

Liu Zhe squatted next to this round object, his eyes showed doubt, such a strange shape and strange symbols on it, he had never seen it on the news at home and abroad. (To be continued.) )